Scholars@Duke
Jie Liu

Jie Liu

George Barth Geller Distinguished Professor of Chemistry
Chemistry
j.liu@duke.edu
Box 90346, Durham, NC 27708-0346
2105 French Science Center, Durham, NC 27708

Selected Publications

“A Lot’s in a Name”: Insights from Debates on Thermal and Nonthermal Effects in Plasmonic Catalysis

Journal Article ACS Applied Energy Materials · December 11, 2023 Plasmonic catalysis is uniquely positioned between photochemistry/electrochemistry and thermal chemistry such that multiple factors may compete to dominate the reaction enhancement mechanism. The adoption of norms originating in both photochemistry and the ... Full text Cite

Achieving maximum overall light enhancement in plasmonic catalysis by combining thermal and non-thermal effects

Journal Article Nature Catalysis · December 1, 2023 Plasmonic photocatalysis presents a promising method for light-to-matter conversion. However, most current studies focus on understanding the relative importance of thermal and non-thermal effects while their synergistic effects remained less studied. Here ... Full text Cite

Ultraviolet Resonant Nanogap Antennas with Rhodium Nanocube Dimers for Enhancing Protein Intrinsic Autofluorescence.

Journal Article ACS nano · November 2023 Plasmonic optical nanoantennas offer compelling solutions for enhancing light-matter interactions at the nanoscale. However, until now, their focus has been mainly limited to the visible and near-infrared regions, overlooking the immense potential of the u ... Full text Cite

Broadband Plasmonic Photocatalysis Enhanced by Photothermal Light Absorbers

Journal Article Journal of Physical Chemistry C · September 14, 2023 Plasmonic photocatalysis is an emerging research field that holds promise for sustainable energy applications, particularly in solar energy conversion. In this study, we focus on the enhancement of broadband light absorption capabilities for plasmonic phot ... Full text Cite

One-Step Synthesis of a High Entropy Oxide-Supported Rhodium Catalyst for Highly Selective CO Production in CO2 Hydrogenation.

Journal Article ACS applied materials & interfaces · July 2023 High entropy oxide (HEO) has shown to be a new type of catalyst support with tunable composition-function properties for many chemical reactions. However, the preparation of a metal nanoparticle catalyst supported on a metal oxide support is time-consuming ... Full text Cite

Controlling product selectivity in hybrid gas/liquid reactors using gas conditions, voltage, and temperature.

Journal Article Nanoscale · June 2023 For the conversion of CO2 into fuels and chemical feedstocks, hybrid gas/liquid-fed electrochemical flow reactors provide advantages in selectivity and production rates over traditional liquid phase reactors. However, fundamental questions remai ... Full text Cite

Self-Assembled Deep Ultraviolet Rhodium nanogap antenna to enhance single protein autofluorescence

Conference 2023 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2023 · January 1, 2023 The study of individual proteins in their natural state without the use of fluorescent labels is vital for gaining a comprehensive understanding of their behavior and function in vivo. However, traditional fluorescence labeling methods can alter the struct ... Full text Cite

Effect of Humidity on C1, C2Product Selectivity for CO2Reduction in a Hybrid Gas/Liquid Electrochemical Reactor

Journal Article ACS Applied Energy Materials · August 22, 2022 Hybrid gas/liquid-fed electrochemical flow reactors may become attractive alternatives for chemical synthesis once it is understood how catalytic product selectivity may be optimized through the control of gas phase reactants. Using a constant pH basic ele ... Full text Cite

High entropy spinel oxide for efficient electrochemical oxidation of ammonia

Journal Article Nano Research · June 1, 2022 Ammonia has emerged as a promising energy carrier owing to its carbon neutral content and low expense in long-range transportation. Therefore, development of a specific pathway to release the energy stored in ammonia is therefore in urgent demand. Electroc ... Full text Cite

Rh/Al Nanoantenna Photothermal Catalyst for Wide-Spectrum Solar-Driven CO2 Methanation with Nearly 100% Selectivity.

Journal Article Nano letters · October 2021 Solar-powered CO2 conversion represents a promising green and sustainable approach for achieving a carbon-neutral economy. However, the rational design of a wide-spectrum sunlight-driven catalysis system for effective CO2 reduction is ... Full text Cite

Sub-10-nm graphene nanoribbons with atomically smooth edges from squashed carbon nanotubes

Journal Article Nature Electronics · September 1, 2021 Graphene nanoribbons are of potential use in the development of electronic and optoelectronic devices. However, the preparation of narrow and long nanoribbons with smooth edges, sizeable bandgaps and high mobilities is challenging. Here we show that sub-10 ... Full text Cite

Metal nitride nanosheets enable highly efficient electrochemical oxidation of ammonia

Journal Article Nano Energy · February 1, 2021 Ammonia has been recognized as a promising hydrogen mediator as it reduces the expense of the long-range transportation of hydrogen. However, methods to extract hydrogen from ammonia require improvements to decrease the overall cost. Ammonia electrolysis p ... Full text Cite

Untangling Thermal and Nonthermal Effects in Plasmonic Photocatalysis

Chapter · January 1, 2021 This chapter introduces a methodology to distinguish the thermal and nonthermal contributions in an illuminated, plasmon-enhanced catalyst. Although nonthermal effects in light-driven reactions are deservedly drawing much attention, photothermal effects ma ... Full text Cite

Surface-Carbonized Bamboos with Multilevel Functional Biostructures Deliver High Photothermal Water Evaporation Performance

Journal Article Advanced Sustainable Systems · September 1, 2020 Interfacial solar steam generation (ISSG) has attracted global attention as an important approach for water purification and desalination. The related photothermal materials based on 3D biostructures are promising due to their abundance and easy accessibil ... Full text Cite

Synergy between thermal and nonthermal effects in plasmonic photocatalysis

Journal Article Nano Research · May 1, 2020 Featured Publication Plasmonic photocatalysis represents the synergetic union of two active fields of research: plasmonic effects in illuminated metallic nanoparticles and catalytic effects in tailored metallic nanoparticles. Traditionally, metallic nanoparticles that excel fo ... Full text Cite

Understanding the Origin of Selective Reduction of CO2 to CO on Single-Atom Nickel Catalyst.

Journal Article The journal of physical chemistry. B · January 2020 Featured Publication Electrochemical reduction of CO2 to CO offers a promising strategy for regulating the global carbon cycle and providing feedstock for the chemical industry. Understanding the origin that determines the faradaic efficiency (FE) of reduction of CO ... Full text Cite

Particle Size Distribution Based Occurrence Features of Organic Components in Printing and Dyeing Wastewater under a Treatment Process

Conference E3S Web of Conferences · October 4, 2019 A more detailed occurrence features of organic matters in the printing and dyeing wastewater, based on its particle size distribution (PSD) and along with a wastewater treatment process, was conducted to provide a support for advanced treatment. Results su ... Full text Cite

Plasmonic catalysis: Heating vs. hot electrons

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · August 25, 2019 Featured Publication Link to item Cite

Diameter dependent doping in horizontally aligned high-density N-doped SWNT arrays

Journal Article Nano Research · August 1, 2019 We reported the growth of horizontally aligned nitrogen-doped single-walled carbon nanotubes (SWNTs) on quartz substrates. The synthesized SWNTs were comprehensively characterized at the single nanotube level. Owing to the highly aligned nature of the nano ... Full text Cite

Confirming nonthermal plasmonic effects enhance CO2 methanation on Rh/TiO2 catalysts

Journal Article Nano Research · August 1, 2019 In some cases, illumination of traditional thermal catalysts and tailored plasmonic photocatalysts may synergistically combine thermal and nonthermal mechanisms to enhance reaction rates and improve product selectivity at reduced temperatures. To understan ... Full text Cite

Biomimetic Superstructures Assembled from Au Nanostars and Nanospheres for Efficient Solar Evaporation

Journal Article Advanced Sustainable Systems · June 1, 2019 The control of the shapes and assembling structures of plasmonic nanoparticles is vital for the optical properties and photothermal conversion performance. Here, gold nanospheres and nanostars are assembled into ridges/disordered nanohole arrays architectu ... Full text Cite

Light-Induced Thermal Gradients in Ruthenium Catalysts Significantly Enhance Ammonia Production.

Journal Article Nano letters · March 2019 Industrial scale catalytic chemical synthesis demands both high reaction rates and high product yields. In exothermic chemical reactions, these conflicting objectives require a complex balance of optimized catalysts, high temperatures, high pressures, and ... Full text Cite

Fully Air-Bladed High-Efficiency Perovskite Photovoltaics

Journal Article Joule · February 20, 2019 Perovskite photovoltaics has achieved rapid development largely due to the spin-coating technique with antisolvent steps at laboratory scale. However, the spin-coating/antisolvent technique limits the device dimension due to film uniformity issues. Up to n ... Full text Cite

High Coulombic efficiency cathode with nitryl grafted sulfur for Li-S battery

Journal Article Energy Storage Materials · February 1, 2019 The development of lithium sulfur (Li-S) batteries has provided a popular alternative to the current state-of-art battery technologies because of their low cost as well as high theoretical specific energy. However, it is still challenging to develop sulfur ... Full text Cite

Effects of Light on Catalytic Activities and Lifetime of Plasmonic Au Catalysts in the CO Oxidation Reaction

Journal Article ACS Catalysis · January 4, 2019 The catalytic oxidation of CO to CO 2 allows for the removal of poisonous CO to improve indoor and outdoor air quality. Currently, industrial CO oxidation catalysts are not effective at low temperatures. A group of the most promising choices, Au catalysts ... Full text Cite

Correction: Pitaya-like microspheres derived from Prussian blue analogues as ultralong-life anodes for lithium storage (Journal of Materials Chemistry A (2016) 4 (15041-15048) DOI: 10.1039/C6TA06692E)

Journal Article Journal of Materials Chemistry A · January 1, 2019 The authors regret that the elemental mapping results shown in Fig. 1i and Fig. 1j of the published article (referring to the elemental distributions of Co3ZnC/C) were incorrect; these may have been mixed with those for other samples during the revision st ... Full text Cite

Concentrated Hydrogel Electrolyte-Enabled Aqueous Rechargeable NiCo//Zn Battery Working from -20 to 50 °C.

Journal Article ACS applied materials & interfaces · January 2019 Zn-based aqueous rechargeable batteries are promising in portable electronics because of their high voltage, low cost, etc. However, most conventional aqueous electrolytes are liable to freeze at low temperature and are incompatible with high ion concentra ... Full text Cite

Simultaneously achieving thermal insulation and rapid water transport in sugarcane stems for efficient solar steam generation

Journal Article Journal of Materials Chemistry A · January 1, 2019 Solar steam generation has attracted increasing attention due to its applications in water purification (e.g., desalination and wastewater treatment). Many strategies have been developed for achieving efficient photothermal conversion materials based on ab ... Full text Cite

Three-dimensional spongy framework as superlyophilic, strongly absorbing, and electrocatalytic polysulfide reservoir layer for high-rate and long-cycling lithium-sulfur batteries

Journal Article Nano Research · December 1, 2018 In the development of lithium-sulfur (Li-S) batteries, various approaches have been adopted to enhance the electronic conductivity of the sulfur cathode and alleviate the shuttle effect of polysulfides; however, the strategies providing efficient solutions ... Full text Cite

Ionic liquid-immobilized polymer gel electrolyte with self-healing capability, high ionic conductivity and heat resistance for dendrite-free lithium metal batteries

Journal Article Nano Energy · December 1, 2018 High-energy rechargeable lithium metal batteries have attracted soaring attention because of high specific capacity and low electrochemical potential of lithium metal. Unfortunately, the lithium dendrite growth upon Li plating severely hinders its practica ... Full text Cite

Atomic Substitution Enabled Synthesis of Vacancy-Rich Two-Dimensional Black TiO2- x Nanoflakes for High-Performance Rechargeable Magnesium Batteries.

Journal Article ACS nano · December 2018 Rechargeable magnesium (Mg) batteries assembled with dendrite-free, safe, and earth-abundant metal Mg anodes potentially have the advantages of high theoretical specific capacity and energy density. Nevertheless, owing to the large polarity of divalent Mg< ... Full text Cite

Nitrogen-Doped Carbon Nanotube Forests Planted on Cobalt Nanoflowers as Polysulfide Mediator for Ultralow Self-Discharge and High Areal-Capacity Lithium-Sulfur Batteries.

Journal Article Nano letters · December 2018 Lithium-sulfur (Li-S) batteries with high theoretical energy density have caught enormous attention for electrochemical power source applications. However, the development of Li-S batteries is hindered by the electrochemical performance decay that resulted ... Full text Cite

Ultrahigh rate capability and ultralong cycling stability of sodium-ion batteries enabled by wrinkled black titania nanosheets with abundant oxygen vacancies

Journal Article Nano Energy · November 1, 2018 Sodium-ion batteries (SIBs) have been considered as one of the promising alternatives for lithium-ion batteries, owning to the abundant reserve and low cost of sodium-related salts. However, SIBs usually suffer from the sluggish kinetics of Na+ and the ser ... Full text Cite

Liquid-phase exfoliated ultrathin Bi nanosheets: Uncovering the origins of enhanced electrocatalytic CO2 reduction on two-dimensional metal nanostructure

Journal Article Nano Energy · November 1, 2018 Electrochemical CO2 reduction has been considered as a promising route for renewable energy storage and carbon-neutral energy cycle. However, the selectivity and stability of electrocatalysts for CO2 reduction need to be improved. Two-dimensional (2D) laye ... Full text Cite

Oxygen Vacancy Engineering Promoted Photocatalytic Ammonia Synthesis on Ultrathin Two-Dimensional Bismuth Oxybromide Nanosheets.

Journal Article Nano letters · November 2018 The catalytic conversion of nitrogen to ammonia is one of the most important processes in nature and chemical industry. However, the traditional Haber-Bosch process of ammonia synthesis consumes substantial energy and emits a large amount of carbon dioxide ... Full text Cite

High-Performance Alkaline Organic Redox Flow Batteries Based on 2-Hydroxy-3-carboxy-1,4-naphthoquinone

Journal Article ACS Energy Letters · October 12, 2018 Aqueous redox flow batteries (ARFBs) based on the electrolyte solutions of redox-active organic molecules are very attractive for the application of large-scale electrochemical energy storage. We propose a high-performance ARFB system utilizing 2-hydroxy-3 ... Full text Cite

Carrier Dynamics Engineering for High-Performance Electron-Transport-Layer-free Perovskite Photovoltaics

Journal Article Chem · October 11, 2018 Electron-transport-layer-free (ETL-free) device architectures are promising designs for perovskite photovoltaics because they offer simpler configurations, low cost, and convenience for versatile optoelectronics. However, the development of ETL-free photov ... Full text Open Access Cite

An all-inorganic perovskite solar capacitor for efficient and stable spontaneous photocharging

Journal Article Nano Energy · October 1, 2018 Integrated energy “harvesting-storage” devices, especially photocharging devices that can simultaneously achieve the functions of photoelectric energy conversion and electrochemical energy storage, have attracted enormous attention to serve as sustainable ... Full text Cite

Partial Surface Oxidation of Manganese Oxides as an Effective Treatment to Improve Their Activity in Electrochemical Oxygen Reduction Reaction

Journal Article Journal of Physical Chemistry C · September 20, 2018 Enhancing the electrocatalytic activity of low-cost transition-metal oxides for oxygen reduction reaction (ORR) is a crucial challenge for extensive application of fuel cells. A promising approach demonstrated previously is the formation of catalysts with ... Full text Cite

Nanoporous and lyophilic battery separator from regenerated eggshell membrane with effective suppression of dendritic lithium growth

Journal Article Energy Storage Materials · September 1, 2018 Lithium metal-based batteries are attractive energy storage systems owing to the high theoretical capacity of lithium metal anode and the known lowest potential among existing anodes. However, lithium anodes usually suffer from severe growth of lithium den ... Full text Cite

High energy density hybrid lithium-ion capacitor enabled by Co3ZnC@N-doped carbon nanopolyhedra anode and microporous carbon cathode

Journal Article Energy Storage Materials · September 1, 2018 Hybrid lithium-ion capacitors (HLICs) have drawn great attention as promising energy devices, because they can integrate the high energy density of lithium ion batteries and the high power density of supercapacitors, and their low cost and long cycling-lif ... Full text Cite

Preparation and characterization of carboxymethylcellulose hydrogel fibers

Journal Article Journal of Engineered Fibers and Fabrics · September 1, 2018 Carboxymethyl cellulose (CMC) hydrogel fibers were prepared via a solution spinning method with aluminum sulfate as the crosslinking agent. The preparation process of the CMC hydrogel fibers was optimized via orthogonal experiments. FTIR, POM, SEM and TGA ... Full text Cite

Thermal and light effect in plasmonic catalysis

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · August 19, 2018 Link to item Cite

Greatly Improved Conductivity of Double-Chain Polymer Network Binder for High Sulfur Loading Lithium–Sulfur Batteries with a Low Electrolyte/Sulfur Ratio

Journal Article Small · August 16, 2018 Binders have been considered to play a key role in realizing high-energy-density lithium–sulfur batteries. However, the accompanying problems of limited conductivity and inferior affinity of soluble polysulfide intermediates bring down their comprehensive ... Full text Cite

Highly Branched VS4 Nanodendrites with 1D Atomic-Chain Structure as a Promising Cathode Material for Long-Cycling Magnesium Batteries.

Journal Article Advanced materials (Deerfield Beach, Fla.) · August 2018 Rechargeable magnesium batteries have attracted increasing attention due to the high theoretical volumetric capacities, dendrite formation-free characteristic and low cost of Mg metal anodes. However, the development of magnesium batteries is seriously hin ... Full text Cite

Gelation Modification of Alginate Nonwoven Fabrics

Journal Article Fibers and Polymers · August 1, 2018 Calcium alginate nonwoven fabrics were gelation-modified by two-stage with aqueous HCl solution and then ethanolic NaOH solution. The structure and crystallinity properties of the samples were characterized by FT-IR, SEM, and XRD. The preparation condition ... Full text Cite

Nanoporous Red Phosphorus on Reduced Graphene Oxide as Superior Anode for Sodium-Ion Batteries.

Journal Article ACS nano · July 2018 As a potential alternative to lithium-ion batteries, sodium-ion batteries (SIBs) have attracted more and more attention due to the lower cost of sodium than lithium. Red phosphorus (RP) is an especially promising anode for SIBs with the highest theoretical ... Full text Cite

An Intrinsically Self-Healing NiCo||Zn Rechargeable Battery with a Self-Healable Ferric-Ion-Crosslinking Sodium Polyacrylate Hydrogel Electrolyte.

Journal Article Angewandte Chemie (International ed. in English) · July 2018 Self-healing solid-state aqueous rechargeable NiCo||Zn batteries are inherently safe and have a high energy density and mechanical robustness. However, the self-healability of solid-state batteries has only been realized by a few studies in which electron/ ... Full text Cite

Sodium sulphide extraction of human keratin

Journal Article Ferroelectrics · June 11, 2018 Sodium sulphide was used to dissolve the waste hair. The optimal reaction conditions were determined via single factor comparison experiments and orthogonal experiments. The results showed that the optimum conditions were as follows: the concentration of N ... Full text Cite

An intrinsically compressible and stretchable all-in-one configured supercapacitor.

Journal Article Chemical communications (Cambridge, England) · June 2018 An all-in-one configured supercapacitor which is intrinsically compressible and stretchable is fabricated via one-step deposition of electrocapacitive nanocomposites onto two sides of a compressible and stretchable polyacrylic acid (PAA) hydrogel electroly ... Full text Cite

Walnut-Like Multicore–Shell MnO Encapsulated Nitrogen-Rich Carbon Nanocapsules as Anode Material for Long-Cycling and Soft-Packed Lithium-Ion Batteries

Journal Article Advanced Functional Materials · May 4, 2018 Metal oxide-based nanomaterials are widely studied because of their high-energy densities as anode materials in lithium-ion batteries. However, the fast capacity degradation resulting from the large volume expansion upon lithiation hinders their practical ... Full text Cite

Strong Capillarity, Chemisorption, and Electrocatalytic Capability of Crisscrossed Nanostraws Enabled Flexible, High-Rate, and Long-Cycling Lithium-Sulfur Batteries.

Journal Article ACS nano · May 2018 The development of flexible lithium-sulfur (Li-S) batteries with high energy density and long cycling life are very appealing for the emerging flexible, portable, and wearable electronics. However, the progress on flexible Li-S batteries was limited by the ... Full text Cite

Plasmon-Enhanced Catalysis: Distinguishing Thermal and Nonthermal Effects.

Journal Article Nano letters · March 2018 In plasmon-enhanced heterogeneous catalysis, illumination accelerates reaction rates by generating hot carriers and hot surfaces in the constituent nanostructured metals. In order to understand how photogenerated carriers enhance the nonthermal reaction ra ... Full text Cite

Crystallization temperature investigation of Cu2ZnSnS4 by using Differential scanning calorimetry (DSC)

Journal Article Ceramics International · March 1, 2018 The Cu2ZnSnS4 (CZTS) powder was systematically investigated by energy dispersive X-Ray spectroscopy (EDX), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Ramam spectrometer, and further studied by differential scanning calorimetry (DSC), t ... Full text Cite

Synergy of polypyrrole and carbon x-aerogel in lithium-oxygen batteries.

Journal Article Nanoscale · February 2018 A crucial step in the development of lithium-oxygen (Li-O2) batteries is to design an oxygen cathode with high catalytic activity and stable porous structure. Achieving such design requires an integrated strategy in which porosity, conductivity, ... Full text Cite

Interface Engineering of Anchored Ultrathin TiO2/MoS2 Heterolayers for Highly-Efficient Electrochemical Hydrogen Production.

Journal Article ACS applied materials & interfaces · February 2018 An efficient self-standing hydrogen evolution electrode was prepared by in situ growth of stacked ultrathin TiO2/MoS2 heterolayers on carbon paper (CP@TiO2@MoS2). Owing to the high overall conductivity, large ele ... Full text Cite

Preparation and properties of cotton fabrics treated with a novel antimicrobial and flame retardant containing triazine and phosphorus components

Journal Article Journal of Thermal Analysis and Calorimetry · February 1, 2018 A novel antibacterial and flame-retardant agent, monochlorotriazine triethylphosphite guanidine (MCTPG) was synthesized successfully. The chemical structure of MCTPG was characterized by FTIR and 1H NMR. The flame retardancy of treated cotton fabric was ev ... Full text Cite

Flexible devices: From materials, architectures to applications

Journal Article Journal of Semiconductors · January 1, 2018 Flexible devices, such as flexible electronic devices and flexible energy storage devices, have attracted a significant amount of attention in recent years for their potential applications in modern human lives. The development of flexible devices is movin ... Full text Cite

Integrated perovskite solar capacitors with high energy conversion efficiency and fast photo-charging rate

Journal Article Journal of Materials Chemistry A · January 1, 2018 Integrating energy harvesting devices with energy storage systems can realize a temporal buffer for local power generation and power consumption. In this manner, self-charging energy devices consisting of photovoltaic cells and energy storage units can ser ... Full text Cite

Recent research trends in Li-S batteries

Journal Article Journal of Materials Chemistry A · January 1, 2018 Lithium-sulfur (Li-S) batteries have recently attracted enormous attention in the energy-storage sector owing to their high theoretical capacities (1675 mA h g-1), high theoretical energy densities (2600 W h kg-1), and cost-effectiveness compared to the st ... Full text Cite

A robust network binder with dual functions of Cu2+ ions as ionic crosslinking and chemical binding agents for highly stable Li-S batteries

Journal Article Journal of Materials Chemistry A · January 1, 2018 Binders play a crucial role in improving the electrochemical performance of batteries. The major challenges associated with the sulfur cathode in lithium-sulfur (Li-S) batteries are up to 76% volume change during cycling from sulfur (S) to lithium sulfide ... Full text Cite

A high-volumetric-capacity and high-areal-capacity ZnCo2O4 anode for Li-ion batteries enabled by a robust biopolymer binder

Journal Article Journal of Materials Chemistry A · January 1, 2018 Constructing high-areal-capacity anodes with high loading for Li-ion batteries is still an enormous challenge, due to the drastic volume change of large-capacity anode materials during cycling. The conventional PVDF binder system fails to withstand the deg ... Full text Cite

Highly efficient overall water splitting driven by all-inorganic perovskite solar cells and promoted by bifunctional bimetallic phosphide nanowire arrays

Journal Article Journal of Materials Chemistry A · January 1, 2018 Overall water splitting driven by a sustainable solar energy source has been recognized as a promising route to produce clean and renewable hydrogen fuel. However, its practical application is restricted by the low energy conversion efficiency and poor sta ... Full text Cite

Hollow nanoporous red phosphorus as an advanced anode for sodium-ion batteries

Journal Article Journal of Materials Chemistry A · January 1, 2018 As a potential alternative to lithium-ion batteries (LIBs), sodium-ion batteries (SIBs) have received more and more attention due to the low cost of sodium and similar chemical properties of sodium and lithium. Developing high performance anode materials i ... Full text Cite

A flexible, electrochromic, rechargeable Zn//PPy battery with a short circuit chromatic warning function

Journal Article Journal of Materials Chemistry A · January 1, 2018 A rechargeable battery with both flexibility and electrochromism integrated into a single apparatus is a major component for smart flexible electronics. However, suitable electrode materials with electrochromic properties are still being searched for. Here ... Full text Cite

Study on the preparation and characterization of cross-linked film of human hair keratin and cellulose

Journal Article Ferroelectrics · December 10, 2017 Films of human human hair keratin were prepared from the mixture of keratin and cellulose and were cross-linked by glutaraldehyde. Properties and structure of the film were characterized by Fourier Transform Infrared Spectroscopy(FTIR), UV-visible transmit ... Full text Cite

Porous-Shell Vanadium Nitride Nanobubbles with Ultrahigh Areal Sulfur Loading for High-Capacity and Long-Life Lithium-Sulfur Batteries.

Journal Article Nano letters · December 2017 Lithium-sulfur (Li-S) batteries hold great promise for the applications of high energy density storage. However, the performances of Li-S batteries are restricted by the low electrical conductivity of sulfur and shuttle effect of intermediate polysulfides. ... Full text Cite

A binder-free NiCo2O4 nanosheet/3D elastic N-doped hollow carbon nanotube sponge electrode with high volumetric and gravimetric capacitances for asymmetric supercapacitors.

Journal Article Nanoscale · November 2017 To increase the volumetric and gravimetric capacitances of supercapacitors, a new class of electrode materials with high electrochemical activity and favorable structures is extremely desired. In this work, a hollow novel nitrogen-doped 3D elastic single-w ... Full text Cite

Additive engineering for high-performance room-temperature-processed perovskite absorbers with micron-size grains and microsecond-range carrier lifetimes

Journal Article Energy and Environmental Science · November 1, 2017 Perovskite photovoltaics have attracted remarkable attention recently due to their exceptional power conversion efficiencies (PCE). State-of-the-art perovskite absorbers typically require thermal annealing steps for high film quality. However, the annealin ... Full text Cite

Stabilized Lithium-Sulfur Batteries by Covalently Binding Sulfur onto the Thiol-Terminated Polymeric Matrices.

Journal Article Small (Weinheim an der Bergstrasse, Germany) · November 2017 Despite the low competitive cost and high theoretical capacity of lithium-sulfur battery, its practical application is severely hindered by fast capacity fading and limited capacity retention mainly caused by the polysulfide dissolution problem. Here, this ... Full text Cite

High coulombic efficiency and high-rate capability lithium sulfur batteries with low-solubility lithium polysulfides by using alkylene radicals to covalently connect sulfur

Journal Article Nano Energy · November 1, 2017 The long-chain lithium polysulfides that are soluble in ether-based electrolyte for lithium sulfur battery are regarded as one of reason for their low Coulumbic efficiency and low rate capability. In this work, we reported a new strategy to stabilize sulfu ... Full text Cite

In Situ Wrapping Si Nanoparticles with 2D Carbon Nanosheets as High-Areal-Capacity Anode for Lithium-Ion Batteries.

Journal Article ACS applied materials & interfaces · November 2017 Silicon (Si) has aroused great interest as the most attractive anode candidate for energy-dense lithium-ion batteries (LIBs) in the past decade because of its significantly high capacity and low discharge potential. However, the large volume change during ... Full text Cite

CsPb0.9Sn0.1IBr2 Based All-Inorganic Perovskite Solar Cells with Exceptional Efficiency and Stability.

Journal Article Journal of the American Chemical Society · October 2017 The emergence of perovskite solar cells (PSCs) has generated enormous interest in the photovoltaic research community. Recently, cesium metal halides (CsMX3, M = Pb or Sn; X = I, Br, Cl or mixed halides) as a class of inorganic perovskites showe ... Full text Cite

All-Inorganic Halide Perovskites for Optoelectronics: Progress and Prospects

Journal Article Solar RRL · October 1, 2017 During the past 8 years, solution-processed organic–inorganic metal halide (OMH) perovskites have become some of the most notable materials because they can exhibit high solar cell efficiency, exceeding 20%. However, due to the volatile and hygroscopic nat ... Full text Cite

Well-designed Te/SnS2/Ag artificial nanoleaves for enabling and enhancing visible-light driven overall splitting of pure water

Journal Article Nano Energy · September 1, 2017 To produce hydrogen and oxygen from photocatalytic overall splitting of pure water provides a promising green route to directly convert solar energy to clean fuel. However, the design and fabrication of high-efficiency photocatalyst is challenging. Here we ... Full text Cite

Self-Templated Formation of Interlaced Carbon Nanotubes Threaded Hollow Co3S4 Nanoboxes for High-Rate and Heat-Resistant Lithium-Sulfur Batteries.

Journal Article Journal of the American Chemical Society · September 2017 Lithium-sulfur batteries (Li-S) have attracted soaring attention due to the particularly high energy density for advanced energy storage system. However, the practical application of Li-S batteries still faces multiple challenges, including the shuttle eff ... Full text Cite

Multiple hydrogel alginate binders for Si anodes of lithium-ion battery

Journal Article Electrochimica Acta · August 10, 2017 A series of hydrogel alginate binders (M-alg, M = Al, Ba, Mn, Zn) for Si anode of lithium ion battery are synthesized by coordinating alginate molecule chains with different cations respectively. Among these binders, Al-alg and Ba-alg both present their Vi ... Full text Cite

Metallic and polar Co9S8 inlaid carbon hollow nanopolyhedra as efficient polysulfide mediator for lithium−sulfur batteries

Journal Article Nano Energy · August 1, 2017 Lithium−sulfur (Li−S) batteries are promising to replace current commercial Li−ion batteries due to the high energy density. Despite this, the poor cyclic stability induced by the shuttle effect of electrolyte-soluble intermediate polysulfides is one of th ... Full text Cite

Two-Dimensional Lead(II) Halide-Based Hybrid Perovskites Templated by Acene Alkylamines: Crystal Structures, Optical Properties, and Piezoelectricity.

Journal Article Inorganic chemistry · August 2017 A series of two-dimensional (2D) hybrid organic-inorganic perovskite (HOIP) crystals, based on acene alkylamine cations (i.e., phenylmethylammonium (PMA), 2-phenylethylammonium (PEA), 1-(2-naphthyl)methanammonium (NMA), and 2-(2-naphthyl)ethanammonium (NEA ... Full text Cite

High-Performance Li-Se Batteries Enabled by Selenium Storage in Bottom-Up Synthesized Nitrogen-Doped Carbon Scaffolds.

Journal Article ACS applied materials & interfaces · August 2017 Selenium (Se) has great promise to serve as cathode material for rechargeable batteries because of its good conductivity and high theoretical volumetric energy density comparable to sulfur. Herein, we report the preparation of mesoporous nitrogen-doped car ... Full text Cite

Solution synthesis and phase control of inorganic perovskites for high-performance optoelectronic devices.

Journal Article Nanoscale · August 2017 An efficient method to synthesize well-crystallized inorganic cesium lead halide perovskites (CsPbX3, X = I or Br) with high yield and high reproducibility was proposed. Notably, the as-prepared CsPbI3 in the yellow orthorhombic phase ... Full text Cite

Molecularly Imprinted Polymer Enables High-Efficiency Recognition and Trapping Lithium Polysulfides for Stable Lithium Sulfur Battery.

Journal Article Nano letters · August 2017 Using molecularly imprinted polymer to recognize various target molecules emerges as a fascinating research field. Herein, we applied this strategy for the first time to efficiently recognize and trap long-chain polysulfides (Li2Sx, x ... Full text Cite

Cerium Oxide Nanocrystal Embedded Bimodal Micromesoporous Nitrogen-Rich Carbon Nanospheres as Effective Sulfur Host for Lithium-Sulfur Batteries.

Journal Article ACS nano · July 2017 For developing lithium-sulfur (Li-S) batteries, it is critical to design advanced cathode materials with high sulfur loading/utilization ratios and strong binding interactions with sulfur species to prevent the dissolution of intermediate polysulfides. Her ... Full text Cite

Flammability and thermal properties of cotton fabrics modified with a novel flame retardant containing triazine and phosphorus components

Journal Article Textile Research Journal · July 1, 2017 A novel formaldehyde-free flame retardant containing phosphorus and dichlorotriazine components (CTAP) for cotton fabrics was synthesized. As an active group, the dichlorotriazine could react with cotton fabric via covalent reaction. The addition of 20.7 w ... Full text Cite

Fabrication of copper and titanium coated textiles for sunlight management

Journal Article Journal of Materials Science: Materials in Electronics · July 1, 2017 Copper (Cu) and titanium (Ti) films with a thickness of 200 nm are deposited onto cotton and polyester fabrics respectively by magnetron sputtering technology and systematically investigated by scanning electron microscopy (SEM), X-ray diffraction (XRD), i ... Full text Cite

Versatile Electronic Skins for Motion Detection of Joints Enabled by Aligned Few-Walled Carbon Nanotubes in Flexible Polymer Composites

Journal Article Advanced Functional Materials · June 6, 2017 Here, novel multifunctional electronic skins (E-skins) based on aligned few-walled carbon nanotube (AFWCNT) polymer composites with a piezoresistive functioning mechanism different from the mostly investigated theory of “tunneling current channels” in rand ... Full text Cite

The effects of Al substitution and partial dissolution on ultrathin NiFeAl trinary layered double hydroxide nanosheets for oxygen evolution reaction in alkaline solution

Journal Article Nano Energy · May 1, 2017 Recently, Ni–based layered double hydroxide (LDH) materials have attracted growing interest owing to the remarkable performance for oxygen evolution reaction (OER). Here we demonstrate the preparation of ultrathin Ni3FeAlx trinary LDH nanosheets with highe ... Full text Cite

Controlled growth and photoconductive properties of hexagonal SnS2 nanoflakes with mesa-shaped atomic steps

Journal Article Nano Research · April 1, 2017 We demonstrated the controlled growth of two-dimensional (2D) hexagonal tin disulfide (SnS2) nanoflakes with stacked monolayer atomic steps. The morphology was similar to flat-topped and step-sided mesa plateaus or step pyramids. The SnS2 nanoflakes were g ... Full text Cite

Efficient Generation of Long-Lived Triplet Excitons in 2D Hybrid Perovskite.

Journal Article Advanced materials (Deerfield Beach, Fla.) · March 2017 Triplet excitons form in quasi-2D hybrid inorganic-organic perovskites and diffuse over 100 nm before radiating with >11% photoluminescence quantum efficiency (PLQE) at low temperatures. ... Full text Cite

Recycling PM2.5 carbon nanoparticles generated by diesel vehicles for supercapacitors and oxygen reduction reaction

Journal Article Nano Energy · March 1, 2017 Particulate matter (PM) pollution has become a serious environmental problem, especially in developing countries, owing to its severe threat to human health. Particularly, airborne PM2.5 (mean aerodynamic diameter ≤2.5 µm) particles are extremely harmful, ... Full text Cite

A New Type of Multifunctional Polar Binder: Toward Practical Application of High Energy Lithium Sulfur Batteries.

Journal Article Advanced materials (Deerfield Beach, Fla.) · March 2017 A new type of amino polar binder with 3D network flexibility structure for high energy Li-S batteries is synthesized and successfully used with commercial sulfur powder cathodes. The binder shows significant performance improvement in capacity retention an ... Full text Cite

Exploiting a robust biopolymer network binder for an ultrahigh-areal-capacity Li-S battery

Journal Article Energy and Environmental Science · March 1, 2017 High-loading electrodes play a crucial role in the practical applications of high-energy-density batteries, which are especially challenging for lithium-sulfur (Li-S) batteries. Herein, a mechanically robust network binder was constructed by weaving dual b ... Full text Cite

Product selectivity in plasmonic photocatalysis for carbon dioxide hydrogenation

Journal Article Nature Communications · February 23, 2017 Featured Publication Open Access Link to item Cite

MoS2-Based All-Purpose Fibrous Electrode and Self-Powering Energy Fiber for Efficient Energy Harvesting and Storage

Journal Article Advanced Energy Materials · February 8, 2017 Here an all-purpose fibrous electrode based on MoS2 is demonstrated, which can be employed for versatile energy harvesting and storage applications. In this coaxial electrode, ultrathin MoS2 nanofilms are grown on TiO2 nanoparticles coated carbon fiber. Th ... Full text Cite

A single wire as all-inclusive fully functional supercapacitor

Journal Article Nano Energy · February 1, 2017 A key challenge in wire-shaped energy storage devices is their complete encapsulation for practical applications. Hence it is of great importance to design and fabricate an all-inclusive structure in which inner and outer current collectors, active materia ... Full text Cite

Bottom-up synthesis of nitrogen-doped porous carbon scaffolds for lithium and sodium storage.

Journal Article Nanoscale · February 2017 Here we report an effective bottom-up solution-phase process for the preparation of nitrogen-doped porous carbon scaffolds (NPCSs), which can be employed as high-performance anode materials for both lithium-ion batteries (LIBs) and sodium-ion batteries (SI ... Full text Cite

Light-driven reaction converts carbon-dioxide into fuel

Journal Article Chemical Engineering World · February 1, 2017 Duke University researchers have developed tiny nanoparticies that help convert carbon dioxide into methane using only ultraviolet light as an energy source. In the past two decades, scientists have explored new and useful ways that light can be used to ad ... Cite

Correction to "All-Inorganic Perovskite Solar Cells".

Journal Article Journal of the American Chemical Society · February 2017 Full text Cite

Highly Efficient Retention of Polysulfides in "Sea Urchin"-Like Carbon Nanotube/Nanopolyhedra Superstructures as Cathode Material for Ultralong-Life Lithium-Sulfur Batteries.

Journal Article Nano letters · January 2017 Despite high theoretical energy density, the practical deployment of lithium-sulfur (Li-S) batteries is still not implemented because of the severe capacity decay caused by polysulfide shuttling and the poor rate capability induced by low electrical conduc ... Full text Cite

Pine needle-derived microporous nitrogen-doped carbon frameworks exhibit high performances in electrocatalytic hydrogen evolution reaction and supercapacitors.

Journal Article Nanoscale · January 2017 The design of electrochemically active materials with appropriate structures and compositions is very important for applications in energy conversion and storage devices. Herein, we demonstrate an effective strategy to prepare microporous heteroatom-doped ... Full text Cite

Hierarchical NiCo2O4 nanosheets/nitrogen doped graphene/carbon nanotube film with ultrahigh capacitance and long cycle stability as a flexible binder-free electrode for supercapacitors

Journal Article Journal of Materials Chemistry A · January 1, 2017 Developing flexible and lightweight energy storage systems for miniaturized electronic equipment and high volumetric performance is arousing increasing interest. For practical applications, the parameters of gravimetric and volumetric performance should bo ... Full text Cite

How sulfidation of ZnO powders enhances visible fluorescence

Journal Article Journal of Materials Chemistry C · January 1, 2017 The mechanism for producing efficient white light phosphors from sulfidated zinc oxide (ZnO) powders is elucidated. ZnO powders prepared by vacuum annealing produce powders of oxygen-deficient ZnO:Zn, while ZnO powders annealed in a sulfur atmosphere produ ... Full text Cite

Greatly Suppressed Shuttle Effect for Improved Lithium Sulfur Battery Performance through Short Chain Intermediates.

Journal Article Nano letters · January 2017 The high solubility of long-chain lithium polysulfides and their infamous shuttle effect in lithium sulfur battery lead to rapid capacity fading along with low Coulombic efficiency. To address above issues, we propose a new strategy to suppress the shuttle ... Full text Cite

A controlled red phosphorus@Ni-P core@shell nanostructure as an ultralong cycle-life and superior high-rate anode for sodium-ion batteries

Journal Article Energy and Environmental Science · January 1, 2017 Sodium-ion batteries (SIBs), a potential alternative to lithium ion batteries (LIBs), have attracted remarkable attention recently due to the natural abundance and low-cost of sodium. Here, we have presented a comprehensive study on combining electroless d ... Full text Cite

Phytotoxicity of soluble graphitic nanofibers to model plant species.

Conference Environmental toxicology and chemistry · December 2016 Carbon nanomaterials are considered promising for applications in energy storage, catalysis, and electronics. This has motivated study of their potential environmental toxicity. Recently, a novel nanomaterial consisting of graphene oxide wrapped around a c ... Full text Cite

All-Inorganic Perovskite Solar Cells.

Journal Article Journal of the American Chemical Society · December 2016 The research field on perovskite solar cells (PSCs) is seeing frequent record breaking in the power conversion efficiency (PCE). However, organic-inorganic hybrid halide perovskites and organic additives in common hole-transport materials (HTMs) exhibit po ... Full text Cite

New magnetic solid phase extractor based on ionic liquid modified β-cyclodextrin polymer/Fe3O4 nanocomposites for selective separation and determination of linuron

Journal Article Journal of Analytical Science and Technology · December 1, 2016 Background: Direct determination of trace analyte, in particular at ultra-trace concentration, cannot be easily achieved in complex systems by UV-visible spectrometry because of the lack of sensitivity and selectivity of the method. Therefore, an efficient ... Full text Cite

Silver nanoparticle toxicity is related to coating materials and disruption of sodium concentration regulation.

Journal Article Nanotoxicology · November 2016 Silver nanoparticles (AgNPs) have been increasingly commercialized and their release into the environment is imminent. Toxicity of AgNP has been studied with a wide spectrum of organisms, yet the mechanism of toxicity remains largely unknown. This study sy ... Full text Open Access Cite

Hierarchical Ternary Carbide Nanoparticle/Carbon Nanotube-Inserted N-Doped Carbon Concave-Polyhedrons for Efficient Lithium and Sodium Storage.

Journal Article ACS applied materials & interfaces · October 2016 Here, we report a hierarchical Co3ZnC/carbon nanotube-inserted nitrogen-doped carbon concave-polyhedrons synthesized by direct pyrolysis of bimetallic zeolitic imidazolate framework precursors under a flow of Ar/H2 and subsequent calc ... Full text Cite

Hierarchical porous nitrogen-rich carbon nanospheres with high and durable capabilities for lithium and sodium storage.

Journal Article Nanoscale · October 2016 To improve the energy storage performance of carbon-based materials, considerable attention has been paid to the design and fabrication of novel carbon architectures with structural and chemical modifications. Herein, we report that hierarchical porous nit ... Full text Cite

Effect of Direct Contact on the Phytotoxicity of Silver Nanomaterials.

Journal Article Environmental science & technology · October 2016 The increasing use of silver nanomaterials (AgNMs) in consumer products will result in an increased amount entering the environment, where AgNMs were recently found to cause phytotoxicity in the model plant Lolium multiflorum. To better understand the caus ... Full text Cite

Preparation of human hair keratin solution and its application in UV protection

Journal Article Journal of Beijing Institute of Clothing Technology (Natural Science Edition) · September 30, 2016 In this paper, human hair keratin solution was prepared from waste hairvia a NaOH/Na2SO3/SDS dissolution system. Taking human hair dissolution rate and keratin extraction rate as test indexes, experiments with variation of the dosage of reagents as well as ... Cite

One-step fabrication of large-area ultrathin MoS2 nanofilms with high catalytic activity for photovoltaic devices.

Journal Article Nanoscale · September 2016 Here we report a facile one-step solution-phase process to directly grow ultrathin MoS2 nanofilms on a transparent conductive glass as a novel high-performance counter electrode for dye-sensitized solar cells. After an appropriate reaction time, the entire ... Full text Cite

In Situ Thermal Synthesis of Inlaid Ultrathin MoS2/Graphene Nanosheets as Electrocatalysts for the Hydrogen Evolution Reaction

Journal Article Chemistry of Materials · August 23, 2016 Herein, we report a unique thermal synthesis method to prepare a novel two-dimensional (2D) hybrid nanostructure consisting of ultrathin and tiny-sized molybdenum disulfide nanoplatelets homogeneously inlaid in graphene sheets (MoS2/G) with excellent elect ... Full text Cite

A remotely driven and controlled micro-gripper fabricated from light-induced deformation smart material

Journal Article Smart Materials and Structures · August 8, 2016 Micro-gripper is an important tool to manipulate and assemble micro-scale objects. Generally, as micro-gripper is too small to be directly driven by general motors, it always needs special driving devices and suitable structure design. In this paper, two-f ... Full text Cite

Selective synthesis of large diameter, highly conductive and high density single-walled carbon nanotubes by a thiophene-assisted chemical vapor deposition method on transparent substrates.

Journal Article Nanoscale · August 2016 Selective synthesis of single-walled carbon nanotubes (SWNTs) with controlled properties is an important research topic for SWNT studies. Here we report a thiophene-assisted chemical vapor deposition (CVD) method to directly grow highly conductive SWNT thi ... Full text Cite

Strong, Machinable Carbon Aerogels for High Performance Supercapacitors

Journal Article Advanced Functional Materials · July 19, 2016 Featured Publication Designing macroscopic, 3D porous conductive materials with high mechanical strength is of great importance in many fields, including energy storage, catalysis, etc. This study reports a novel approach to fabricate polyaniline-coated 3D carbon x-aerogels, a ... Full text Cite

Emerging non-lithium ion batteries

Journal Article Energy Storage Materials · July 1, 2016 Li-ion batteries have dominated the field of electrochemical energy storage for the last 20 years. It still remains to be one of the most active research fields. However, there are difficult problems still surrounding lithium ion batteries, such as high co ... Full text Cite

Subatomic deformation driven by vertical piezoelectricity from CdS ultrathin films.

Journal Article Science advances · July 2016 Driven by the development of high-performance piezoelectric materials, actuators become an important tool for positioning objects with high accuracy down to nanometer scale, and have been used for a wide variety of equipment, such as atomic force microscop ... Full text Open Access Cite

Self-assembled ultrathin NiCo2S4 nanoflakes grown on Ni foam as high-performance flexible electrodes for hydrogen evolution reaction in alkaline solution

Journal Article Nano Energy · June 1, 2016 Considerable efforts have been devoted on the design and fabrication of non-platinum electrocatalysts with high performance and low cost for hydrogen evolution reaction (HER). However, the catalytic activity of existing electrocatalysts usually subjects to ... Full text Cite

Li3V2(PO4)3 encapsulated flexible free-standing nanofabric cathodes for fast charging and long life-cycle lithium-ion batteries.

Journal Article Nanoscale · April 2016 Lithiated transition metal phosphates with large theoretical capacities have emerged as promising cathode materials for rechargeable lithium-ion batteries. However, the poor kinetic properties caused by their low intrinsic electronic and ionic conductivity ... Full text Cite

The morphology-controlled synthesis of a nanoporous-antimony anode for high-performance sodium-ion batteries

Journal Article Energy and Environmental Science · April 1, 2016 We have presented a comprehensive study of using chemical dealloying methods to control the morphology of nanoporous-antimony (NP-Sb) and the size of Sb particles. For the first time, depending on the regulation of the Al-Sb alloy composition, coral-like N ... Full text Cite

Suppressing the voltage-fading of layered lithium-rich cathode materials via an aqueous binder for Li-ion batteries

Journal Article Chemical Communications · March 28, 2016 Guar gum (GG) has been applied as a binder for layered lithium-rich cathode materials of Li-ion batteries for the first time. Compared with the conventional PVDF binder, electrodes with GG as the binder exhibit significantly suppressed voltage and capacity ... Full text Cite

Rational design of carbon/inorganic composite nanostructures for energy storage and conversion

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · March 13, 2016 Link to item Cite

Mechanistic studies on the shape-based phytotoxicity of silver nanomaterials

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · March 13, 2016 Link to item Cite

Ionic Liquid-Immobilized Expanded Perlite Solid-Phase Extraction for Separation/Analysis of Bisphenol A in Food Packaging Material

Journal Article Food Analytical Methods · March 1, 2016 The ionic liquid-immobilized expanded perlite (IL-EP) as a novel solid phase extraction adsorbent coupled with fluorescence spectroscopy for the separation/analysis of bisphenol A (BPA) was established. The results showed that BPA was rapidly adsorbed on I ... Full text Cite

Aligned Single-Walled Carbon Nanotube Arrays from Rhodium Catalysts with Unexpected Diameter Uniformity Independent of the Catalyst Size and Growth Temperature

Journal Article Chemistry of Materials · February 9, 2016 Diameter control in the synthesis of single-walled carbon nanotube (SWNT) arrays is vital to the control of their properties and their integration into practical devices. Controlling the size of catalyst nanoparticles (NPs) and following a tangential nucle ... Full text Cite

3D nanostructured multilayer Si/Al film with excellent cycle performance as anode material for lithium-ion battery

Journal Article Journal of Alloys and Compounds · February 5, 2016 The practical application of Si film anode is hindered severely, due to the very low active material loading. In current study, 3-dimensional nanostructured multilayer Si/Al film (3D-MSAF) of 1 μm in total Si thickness was prepared through chemical etching ... Full text Cite

Multi-yolk-shell copper oxide@carbon octahedra as high-stability anodes for lithium-ion batteries

Journal Article Nano Energy · February 1, 2016 Although transition metal oxides have attracted considerable attention for their high energy density as anode materials of lithium-ion batteries, they suffer from large volume expansion during lithiation process, which usually causes fast capacity degradat ... Full text Cite

Effect of interlayer spacing on sodium ion insertion in nanostructured titanium hydrogeno phosphates/carbon nanotube composites

Journal Article RSC Advances · January 1, 2016 In sodium ion batteries, the ease of insertion and extraction of sodium ions in the electrode materials is one of the key parameters for the overall performance. In this article, the electrochemical sodium ion insertion in layered titanium hydrogeno phosph ... Full text Cite

Plasmonics in the UV range with Rhodium nanocubes

Conference Proceedings of SPIE - The International Society for Optical Engineering · January 1, 2016 Featured Publication Plasmonics in the UV-range constitutes a new challenge due to the increasing demand to detect, identify and destroy biological toxins, enhance biological imaging, and characterize semiconductor devices at the nanometer scale. Silver and aluminum have an ef ... Full text Cite

Pitaya-like microspheres derived from Prussian blue analogues as ultralong-life anodes for lithium storage

Journal Article Journal of Materials Chemistry A · January 1, 2016 To alleviate the capacity degradation of conventional anode materials caused by serious volume expansion and particle aggregation for lithium-ion batteries (LIBs), considerable attention has been devoted to the rational design and synthesis of novel anode ... Full text Cite

Synthesis of FeS@C-N hierarchical porous microspheres for the applications in lithium/sodium ion batteries

Journal Article Journal of Alloys and Compounds · January 1, 2016 FeS@C-N hierarchical porous microspheres composed of nanosheets were synthesized by a soft-template solvothermal method. The FeS nanoparticles with a diameter of ∼6 nm are coated by amorphous N-doped carbon. When served as anode, the composite displays sup ... Full text Cite

Novel highly conductive ferroferric oxide/porous carbon nanofiber composites prepared by electrospinning as anode materials for high performance Li-ion batteries

Journal Article RSC Advances · January 1, 2016 In this paper, ferroferric oxide (Fe3O4) nanoparticles/porous carbon nanofiber (Fe3O4/PCNFs) composites were successfully fabricated by electrospinning and subsequent calcination. The composites were characterized by X-ray diffraction, thermogravimetric an ... Full text Cite

Improving the Electrochemical Performance of Li1.14Ni0.18Mn0.62O2 by Modulating Structure Defects via a Molten Salt Method

Journal Article ChemElectroChem · January 1, 2016 Nanocrystalline Li1.14Ni0.18Mn0.62O2 cathode materials are synthesized by a molten salt method using KCl as the molten agent. The influence of the sintering temperature and the mass ratio of KCl to Li1.14Ni0.18Mn0.62O2 on the structure and electrochemical ... Full text Cite

Advanced arrayed bismuth nanorod bundle anode for sodium-ion batteries

Journal Article Journal of Materials Chemistry A · January 1, 2016 For the first time, arrayed bismuth (Bi) nanorod bundles were prepared by chemical dealloying of Al30Bi70 (at%) alloy ribbon, using a top-down process. The arrayed Bi nanorod bundles exhibit a high retention capacity of 301.9 mA h g-1 after 150 cycles at a ... Full text Cite

Miniaturized Swimming Soft Robot with Complex Movement Actuated and Controlled by Remote Light Signals.

Journal Article Scientific reports · December 2015 Powering and communication with micro robots to enable complex functions is a long-standing challenge as the size of robots continues to shrink. Physical connection of wires or components needed for wireless communication are complex and limited by the siz ... Full text Open Access Cite

Ionic-Liquid-Loaded β-Cyclodextrin-Cross-Linked Polymer Solid-Phase Extraction for the Separation/Analysis of Linuron in Fruit and Vegetable Samples

Journal Article Food Analytical Methods · October 4, 2015 A novel method for the separation/analysis of linuron in fruit and vegetable samples is described. The work is based on the utilization of ionic liquid ([C6min][PF6])-loaded β-cyclodextrin cross-linked polymer (IL-β-CDCP) for the effective adsorption of li ... Full text Cite

Highly Stretchable Conductive Fibers from Few-Walled Carbon Nanotubes Coated on Poly(m-phenylene isophthalamide) Polymer Core/Shell Structures.

Journal Article ACS nano · October 2015 A core/shell stretchable conductive composite of a few-walled carbon nanotube network coated on a poly(m-phenylene isophthalamide) fiber (FWNT/PMIA) was fabricated by a dip-coating method and an annealing process that greatly enhanced interactions between ... Full text Cite

Gate-Free Electrical Breakdown of Metallic Pathways in Single-Walled Carbon Nanotube Crossbar Networks.

Journal Article Nano letters · September 2015 Aligned single-walled carbon nanotubes (SWNTs) synthesized by the chemical vapor deposition (CVD) method have exceptional potential for next-generation nanoelectronics. However, the coexistence of semiconducting (s-) and metallic (m-) SWNTs remains a consi ... Full text Cite

Graphoepitaxial effect in the guided growth of SWNT arrays on quartz

Journal Article Journal of Materials Chemistry C · August 25, 2015 Researchers have demonstrated that the alignment of single-walled carbon nanotubes (SWNTs) on the surface of the single crystal substrate is due to guided growth along either step edges (graphoepitaxial) or certain directions in the atomic lattice (epitaxi ... Full text Cite

Phytotoxicity of copper nanowires in environmentally relevant species

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · August 16, 2015 Link to item Cite

Novel antibiotic/silver nanomaterial hybrid as a surface coating on medical devices

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · August 16, 2015 Link to item Cite

Reducing Environmental Toxicity of Silver Nanoparticles through Shape Control.

Journal Article Environmental science & technology · August 2015 The use of antibacterial silver nanomaterials in consumer products ranging from textiles to toys has given rise to concerns over their environmental toxicity. These materials, primarily nanoparticles, have been shown to be toxic to a wide range of organism ... Full text Cite

Nanostructured Materials for a Sustainable Future.

Journal Article Small (Weinheim an der Bergstrasse, Germany) · July 2015 Full text Cite

Synthesis and application of polyurethane modified organic silicone wet rubbing fastness improver

Journal Article Journal of Donghua University (English Edition) · June 30, 2015 Polyurethane modified organic silicone was successfully prepared from hydroxyl-terminated polyether modified silicone, toluene-2, 4-diisocyanate (TDI), and NaHSO3. The chemical structure of the polyurethane modified organic silicone was characterized by FT ... Cite

Hydrophilic Hierarchical Nitrogen-Doped Carbon Nanocages for Ultrahigh Supercapacitive Performance.

Journal Article Advanced materials (Deerfield Beach, Fla.) · June 2015 The synergism of large surface area, multiscale porous structure, and good conductivity endows hierarchical carbon nanocages with high-level supercapacitive performances. Further nitrogen doping greatly improves the hydrophilicity, which boosts the superca ... Full text Cite

A Robust Ion-Conductive Biopolymer as a Binder for Si Anodes of Lithium-Ion Batteries

Journal Article Advanced Functional Materials · June 1, 2015 Binders have been reported to play a key role in improving the cycle performance of Si anode materials of lithium-ion batteries. In this study, the biopolymer guar gum (GG) is applied as the binder for a silicon nanoparticle (SiNP) anode of a lithium-ion b ... Full text Cite

Structure and properties of Ni-P-graphite (Cg)-TiO2 composite coating

Journal Article Surface Engineering · June 1, 2015 Titanium dioxide (TiO2) and graphite (Cg) particles were co-deposited with nickel-phosphorous (Ni-P) coatings through electroless deposition process. Surface morphology of the coatings was analysed by scanning electron microscope (SEM). X-ray diffraction ( ... Full text Cite

Engineering hollow mesoporous silica nanocontainers with molecular switches for continuous self-healing anticorrosion coating

Journal Article Journal of Materials Chemistry A · May 14, 2015 Here we report a new light-responsive and self-healing anticorrosion coating by incorporating hollow nanocontainers with smart molecular switches. The smart coating was obtained by immobilizing photoresponsive azobenzene molecular switches in the nanopores ... Full text Cite

Flexible carbon nanotube - Graphene/sulfur composite film: Free-standing cathode for high-performance lithium/sulfur batteries

Journal Article Journal of Physical Chemistry C · May 14, 2015 Flexible lithium batteries with high energy density have recently received tremendous interest due to their potential applications in flexible electronic devices. Herein, we report a novel method to fabricate highly flexible and robust carbon nanotube-grap ... Full text Cite

Subunits controlled synthesis of α-Fe2O3 multi-shelled core-shell microspheres and their effects on lithium/sodium ion battery performances

Journal Article Journal of Materials Chemistry A · May 14, 2015 Two kinds of Fe2O3 core-shell microspheres were synthesized. The Fe2O3 sample obtained using ethanol (E-Fe2O3) contains a shell and a core assembled by nanoparticles with a diameter of ∼150 nm and the surface is fairly smooth. Fe2O3 with optimized subunits ... Full text Cite

Graphene oxide as a dual-function conductive binder for PEEK-derived microporous carbons in high performance supercapacitors

Journal Article 2D Materials · May 6, 2015 Microporous carbons (MPCs) are promising electrode materials for supercapacitors because of their high surface area and accessible pores. However, their low electrical conductivity and mechanical instability result in limited power density and poor cycle l ... Full text Cite

Nano-/Microstructured Si/C Composite with High Tap Density as an Anode Material for Lithium-Ion Batteries

Journal Article ChemElectroChem · April 15, 2015 Nanostructured Si materials are plagued by having a limited electrochemical performance and low tap density. Hence, we synthesized a nano-/microstructured Si/C composite with Si nanoparticles uniformly embedded into a carbon matrix, which had a tap density ... Full text Cite

Graphene based energy devices.

Journal Article Nanoscale · April 2015 Full text Cite

Nanoporous germanium as high-capacity lithium-ion battery anode

Journal Article Nano Energy · April 1, 2015 For the first time nanoporous germanium (np-Ge) was prepared by chemical dealloying allowing for mass production of electrodes for LiBs. Nanoporous structure can accommodate volume changes during the lithiation/de-lithiation progress and promote high-rate ... Full text Cite

A new approach towards the synthesis of nitrogen-doped graphene/MnO2 hybrids for ultralong cycle-life lithium ion batteries

Journal Article Journal of Materials Chemistry A · March 28, 2015 A new approach using polypyrrole as the nitrogen source has been demonstrated for the fabrication of nitrogen-doped graphene, which subsequently served as nucleation centers for the growth of metal oxides. The thin layers of the nitrogen-doped graphene are ... Full text Cite

Rhodium nanoparticles for ultraviolet plasmonics.

Journal Article Nano letters · February 2015 The nonoxidizing catalytic noble metal rhodium is introduced for ultraviolet plasmonics. Planar tripods of 8 nm Rh nanoparticles, synthesized by a modified polyol reduction method, have a calculated local surface plasmon resonance near 330 nm. By attaching ... Full text Open Access Cite

Effects of morphology and chemical doping on electrochemical properties of metal hydroxides in pseudocapacitors.

Journal Article Nanoscale · February 2015 It is well known that both the structural morphology and chemical doping are important factors that affect the properties of metal hydroxide materials in electrochemical energy storage devices. In this work, an effective method to tailor the morphology and ... Full text Cite

Conductive graphene fibers for wire-shaped supercapacitors strengthened by unfunctionalized few-walled carbon nanotubes.

Journal Article ACS nano · February 2015 Graphene fibers are a promising electrode material for wire-shaped supercapacitors (WSSs) that can be woven into textiles for future wearable electronics. However, the main concern is their high linear resistance, which could be effectively decreased by th ... Full text Cite

Making a commercial carbon fiber cloth having comparable capacitances to carbon nanotubes and graphene in supercapacitors through a "top-down" approach.

Journal Article Nanoscale · February 2015 A "top-down" and scalable approach for processing carbon fiber cloth (CFC) into flexible and all-carbon electrodes with remarkable areal capacity and cyclic stability was developed. CFC is commercially available in large quantities but its use as an electr ... Full text Cite

Understanding the discrepancy between the quality and yield in the synthesis of carbon nanotubes

Journal Article Nano Research · January 1, 2015 High-quality carbon nanotubes (CNTs) are promising materials in many applications. However, current chemical vapor deposition (CVD) methods for CNT synthesis suffer from the discrepancy between the quality and yield of CNTs: Low-quality CNTs can be synthes ... Full text Cite

Electroless deposition of Ni3P-Ni arrays on 3-D nickel foam as a high performance anode for lithium-ion batteries

Journal Article RSC Advances · January 1, 2015 We successfully prepared advanced Ni3P-Ni array electrodes for Li-ion batteries (LIBs) by electroless deposition on 3-D nickel foam. The array structure of Ni3P-Ni can accommodate volume changes during the lithiation/de-lithiation process and promote high- ... Full text Cite

Study on preparation and characterization of regenerated cellulose/TPU composite films

Journal Article Gongneng Cailiao/Journal of Functional Materials · January 1, 2015 The regenerated cellulose/TPU blend films were prepared by being dissolved in DMAC/LiCl solvent and coagulated in distilled water. The structure of TPU was characterized by 1H NMR. The structure of the blend films were characterized by FT-IR and XRD. The t ... Full text Cite

Aging of fullerene C₆₀ nanoparticle suspensions in the presence of microbes.

Journal Article Water research · November 2014 Despite the growing use of carbon nanomaterials in commercial applications, very little is known about the fate of these nanomaterials once they are released into the environment. The carbon-carbon bonding of spherical sp(2) hybridized fullerene (C60) form ... Full text Cite

Infrared reflective property of AZO films prepared by RF magnetron sputtering

Journal Article Materials Technology · November 1, 2014 Al doped ZnO (AZO) films were prepared on glass substrates by radio frequency (RF) magnetron sputtering technology. Surface morphology, crystal structure, chemical composition, UV-visible transmittance, electrical and infrared properties of the AZO films w ... Full text Cite

Stretchable and high-performance supercapacitors with crumpled graphene papers.

Journal Article Scientific reports · October 2014 Fabrication of unconventional energy storage devices with high stretchability and performance is challenging, but critical to practical operations of fully power-independent stretchable electronics. While supercapacitors represent a promising candidate for ... Full text Open Access Cite

Synthesis of hierarchical worm-like SnO2@C aggregates and their enhanced lithium storage properties

Journal Article Journal of Alloys and Compounds · September 16, 2014 The present paper reports a synthetic strategy of hierarchical worm-like SnO2@C aggregates with enhanced electrochemical performances. Specifically, a glucose-assisted hydrothermal treatment of the intermediate Co-Sn alloy nanoparticles, which were formed ... Full text Cite

Effect of multi-walled carbon nanotubes and conducting polymer on capacitance of mesoporous carbon electrode.

Journal Article Journal of nanoscience and nanotechnology · September 2014 Porous carbon is the most widely used electrode materials in energy storage devices. It is generally accepted that in such electrodes, mesoporosity is more desired in supercapacitor than microporosity for the ions tranportation. However, the relatively poo ... Full text Cite

Importance of diameter control on selective synthesis of semiconducting single-walled carbon nanotubes.

Journal Article ACS nano · August 2014 The coexistence of semiconducting and metallic single-walled carbon nanotubes (SWNTs) during synthesis is one of the major bottlenecks that prevent their broad application for the next-generation nanoelectronics. Herein, we present more understanding and d ... Full text Open Access Cite

Research on the dyeing behavior of wool fabric with natural phytolacca berry dyes

Journal Article Wool Textile Journal · July 5, 2014 The natural dyes was extracted from mature Phytolacca berries for wool fabric dyeing, the influence of different dyeing process parameters on the dyeing depth was investigated in the case of direct dyeing, Al3+ as mordant was applied to improve the dyeing ... Cite

A high-performance alginate hydrogel binder for the Si/C anode of a Li-ion battery

Journal Article Chemical Communications · May 20, 2014 An alginate hydrogel binder is prepared through the cross linking effect of Na alginate with Ca2+ions, which leads to a remarkable improvement in the electrochemical performance of the Si/C anode of a Li-ion battery. © 2014 The Partner Organisations. ... Full text Cite

Fe3O4-CNTs nanocomposites: Inorganic dispersant assisted hydrothermal synthesis and application in lithium ion batteries

Journal Article Journal of Solid State Chemistry · May 1, 2014 Fe3O4-CNTs nanocomposites with a particle size of ~80 nm have been synthesized through an organic-free hydrothermal synthesis strategy by using Sn(OH)62- as an inorganic dispersant, and served as anode materials of lithium ion batteries. Nano-sized and mic ... Full text Cite

Water adsorption in nanoporous carbon characterized by in situ NMR: Measurements of pore size and pore size distribution

Journal Article Journal of Physical Chemistry C · April 24, 2014 We report an in situ nuclear magnetic resonance (NMR) study of water adsorption in a series of activated carbon samples with pore sizes of a few nanometers down to the subnanometer scale (nanoporous carbon). Water adsorption exhibits S-shaped type V isothe ... Full text Cite

Novel synthetic methodology for controlling the orientation of zinc oxide nanowires grown on silicon oxide substrates.

Journal Article Nanoscale · April 2014 This study presents a simple method to reproducibly obtain well-aligned vertical ZnO nanowire arrays on silicon oxide (SiOx) substrates using seed crystals made from a mixture of ammonium hydroxide (NH4OH) and zinc acetate (Zn(O2CCH3)2) solution. In compar ... Full text Cite

Influence of the nickel oxide nanostructure morphology on the effectiveness of reduced graphene oxide coating in supercapacitor electrodes

Journal Article Journal of Physical Chemistry C · February 6, 2014 The effect of composition and microstructure of NiO on the electrochemical properties of NiO/reduced graphene oxide-based supercapacitor electrodes prepared by solvothermal methods were investigated systematically. The findings reveal that the influences o ... Full text Cite

Growth of high-density-aligned and semiconducting-enriched single-walled carbon nanotubes: decoupling the conflict between density and selectivity.

Journal Article ACS nano · January 2014 Single-walled carbon nanotubes (SWNTs) are highly desired for future electronic applications due to the excellent electrical, mechanical, and thermal properties. However, the density and the selectivity in the growth of aligned semiconducting nanotubes do ... Full text Cite

Ultrafast high-capacity NiZn battery with NiAlCo-layered double hydroxide

Journal Article Energy and Environmental Science · January 1, 2014 High-performance, low-cost, safe and environmentally friendly batteries are important for portable electronics and electric vehicles. Here, we synthesized NiAlCo-layered double hydroxide (LDH) nanoplates attached to few-walled carbon nanotubes (NiAlCo LDH/ ... Full text Cite

Core-shell photoelectrochemical electrodes for water splitting

Conference Nanoscale Science and Engineering Forum 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future · January 1, 2014 Cite

Study on the dyeing of wool fabrics with Phytolacca berry natural dyes

Journal Article Fibers and Polymers · January 1, 2014 Dyeing of wool fabrics with natural dyes from Phytolacca berries has been studied. The effect of dye concentration, dye bath pH, dyeing time and temperature were discussed. The influence of chitosan application on the dyeing properties of wool fabrics was ... Full text Cite

High-throughput optical imaging and spectroscopy of individual carbon nanotubes in devices.

Journal Article Nature nanotechnology · December 2013 Single-walled carbon nanotubes are uniquely identified by a pair of chirality indices (n,m), which dictate the physical structures and electronic properties of each species. Carbon nanotube research is currently facing two outstanding challenges: achieving ... Full text Cite

The dependence of ZnO photoluminescence efficiency on excitation conditions and defect densities

Journal Article Applied Physics Letters · November 11, 2013 The quantum efficiencies of both the band edge and deep-level defect emission from annealed ZnO powders were measured as a function of excitation fluence and wavelength from a tunable sub-picosecond source. A simple model of excitonic decay reproduces the ... Full text Cite

In vitro cytotoxicity of silver nanoparticles in primary rat hepatic stellate cells.

Journal Article Molecular medicine reports · November 2013 The number of studies concerning silver nanoparticles (AgNPs) has increased, due in part to their potential uses for biomedical applications. These particles have been demonstrated in the elimination of the hepatitis B virus and the inhibition of the proli ... Full text Cite

Improving the performance of cobalt-nickel hydroxide-based self-supporting electrodes for supercapacitors using accumulative approaches

Journal Article Energy and Environmental Science · November 1, 2013 Featured Publication In this paper we describe an accumulative approach to move beyond simple incorporation of conductive carbon nanostructures, such as graphene and carbon nanotubes, to improve the performance of metal oxide/hydroxide based electrodes in energy storage applic ... Full text Cite

Highly efficient oxygen reduction electrocatalysts based on winged carbon nanotubes.

Journal Article Scientific reports · November 2013 Developing electrocatalysts with both high selectivity and efficiency for the oxygen reduction reaction (ORR) is critical for several applications including fuel cells and metal-air batteries. In this work we developed high performance electrocatalysts bas ... Full text Open Access Cite

Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection.

Journal Article Water research · August 2013 Silver nanoparticles (AgNPs)-alginate composite beads were synthesized using three different approaches as filler materials of packed columns for simultaneous filtration-disinfection as an alternative portable water treatment process. The prepared composit ... Full text Cite

Significantly improved long-cycle stability in high-rate Li-S batteries enabled by coaxial graphene wrapping over sulfur-coated carbon nanofibers.

Journal Article Nano letters · June 2013 Long-term instability of Li-S batteries is one of their major disadvantages compare to other secondary batteries. The reasons for the instability include dissolution of polysulfide intermediates and mechanical instability of the electrode film caused by vo ... Full text Cite

Highly conductive carbon nanotube matrix accelerates developmental chloride extrusion in central nervous system neurons by increased expression of chloride transporter KCC2.

Journal Article Small · April 8, 2013 Exceptional mechanical and electrical properties of carbon nanotubes (CNT) have attracted neuroscientists and neural tissue engineers aiming to develop novel devices that interface with nervous tissues. In the central nervous system (CNS), the perinatal ch ... Full text Link to item Cite

Localized excitons mediate defect emission in ZnO powders

Journal Article Journal of Applied Physics · April 7, 2013 A series of continuous-wave spectroscopic measurements elucidates the mechanism responsible for the technologically important green emission from deep-level traps in ZnO:Zn powders. Analysis of low-temperature photoluminescence (PL) and PL excitation spect ... Full text Cite

Solution-processed, antimony-doped tin oxide colloid films enable high-performance TiO2 photoanodes for water splitting.

Journal Article Nano letters · April 2013 Photoelectrochemical (PEC) water splitting and solar fuels hold great promise for harvesting solar energy. TiO2-based photoelectrodes for water splitting have been intensively investigated since 1972. However, solar-to-fuel conversion efficiencies of TiO2 ... Full text Cite

Flexible asymmetric supercapacitors with high energy and high power density in aqueous electrolytes.

Journal Article Nanoscale · February 2013 Supercapacitors with both high energy and high power densities are critical for many practical applications. In this paper, we discuss the design and demonstrate the fabrication of flexible asymmetric supercapacitors based on nanocomposite electrodes of Mn ... Full text Cite

Core-shell photoelectrochemical electrodes for water splitting

Conference Environmental Division 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future · January 1, 2013 Cite

Core-shell photoelectrochemical electrodes for water splitting

Journal Article Environmental Division 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future · 2013 Cite

Core-shell photoelectrochemical electrodes for water splitting

Journal Article Fuels and Petrochemicals Division 2013 - Core Programming Area at the 2013 AIChE Annual Meeting: Global Challenges for Engineering a Sustainable Future · 2013 Cite

Carbon nanomaterials for flexible energy storage

Journal Article Materials Research Letters · January 1, 2013 Flexible energy storage systems have substantial inherent advantages in comparison with many currently employed systems due to improved versatility, performance and potentially lower cost. The research within this field is currently undergoing tremendous d ... Full text Cite

Antimicrobial nanotechnology: its potential for the effective management of microbial drug resistance and implications for research needs in microbial nanotoxicology.

Journal Article Environmental science. Processes & impacts · January 2013 The development of antibiotics revolutionized human health, providing a simple cure for once dreaded diseases such as tuberculosis. However, widespread production, use, and mis-use of antibiotics have contributed to the next-generation concern for global p ... Full text Cite

One-pot synthesis of functionalized few-walled carbon nanotube/MnO 2 composite for high performance electrochemical supercapacitors

Journal Article Ceramic Transactions · January 1, 2013 In this paper, we described a one-pot approach to synthesize functionalized few-walled carbon nanotubes (fFWNTs)/MnO2 composite for high performance electrochemical supercapacitor by mixing raw FWNTs with KMnO 4 under acidic condition. This approach combin ... Full text Cite

Monolithic co-aerogels of carbon/titanium dioxide as three dimensional nanostructured electrodes for energy storage

Journal Article Journal of Power Sources · November 15, 2012 Conductive fillers, such as amorphous carbon, carbon nanotube and graphene etc., are generally mixed with nanostructured metal oxide materials to improve the performance of electrode materials in energy storage devices. However, the conductive framework th ... Full text Cite

Carbon nanotube arrays based high-performance infrared photodetector [Invited]

Journal Article Optical Materials Express · September 27, 2012 The carbon nanotubes (CNTs) are an ideal material for infrared applications due to its excellent electronic and optoelectronic properties, suitable bandgap, mechanical and chemical stabilities. In this paper, we demonstrate a photovoltaic infrared detector ... Full text Cite

Uptake of silver nanoparticles and toxicity to early life stages of Japanese medaka (Oryzias latipes): effect of coating materials.

Journal Article Aquatic toxicology (Amsterdam, Netherlands) · September 2012 Silver nanoparticles (AgNPs) with antimicrobial properties are perhaps the most deployed engineered nanomaterials in consumer products. Almost all AgNPs are coated with organic materials to enhance their dispersion in water. Contributions of coatings to th ... Full text Cite

Detection, characterization, and abundance of engineered nanoparticles in complex waters by hyperspectral imagery with enhanced Darkfield microscopy.

Journal Article Environmental science & technology · September 2012 We introduce a novel methodology based on hyperspectral imagery with enhanced Darkfield microscopy for detection, characterization, and analysis of engineered nanoparticles in both ultrapure water and in complex waters, such as simulated-wetland ecosystem ... Full text Cite

General rules for selective growth of enriched semiconducting single walled carbon nanotubes with water vapor as in situ etchant.

Journal Article Journal of the American Chemical Society · August 2012 The presence of metallic nanotubes in as-grown single walled carbon nanotubes (SWNTs) is the major bottleneck for their applications in field-effect transistors. Herein, we present a method to synthesize enriched, semiconducting nanotube arrays on quartz s ... Full text Cite

Synergistic effects from graphene and carbon nanotubes enable flexible and robust electrodes for high-performance supercapacitors.

Journal Article Nano letters · August 2012 Flexible and lightweight energy storage systems have received tremendous interest recently due to their potential applications in wearable electronics, roll-up displays, and other devices. To manufacture such systems, flexible electrodes with desired mecha ... Full text Cite

Carbon nanotube based ultra-low voltage integrated circuits: Scaling down to 0.4 v

Journal Article Applied Physics Letters · June 25, 2012 Carbon nanotube (CNT) based integrated circuits (ICs) including basic logic and arithmetic circuits were demonstrated working under a supply voltage low as 0.4 V, which is much lower than that used in conventional silicon ICs. The low limit of supply volta ... Full text Cite

Carbon nanotube field-effect transistors for use as pass transistors in integrated logic gates and full subtractor circuits.

Journal Article ACS nano · May 2012 The use of carbon nanotube (CNT)-based field-effect transistors (FETs) as pass transistors is investigated. Logic gates are designed and constructed with these CNT FETs in the pass-transistor logic (PTL) style. Because two of the three terminals of every C ... Full text Cite

A passively mode-locked Nd:YVO 4 Laser with a carbon nanotube saturable absorber

Journal Article Laser Physics · April 1, 2012 We report the mode locking of a diode pumped Nd:YVO 4 crystal laser by using a transmission-type single-walled carbon nanotube saturable absorber. The laser operated at 1064 nm pumped by a fiber coupled laser diode with the cavity length of 1826 mm, genera ... Full text Cite

Channel-length-dependent transport and photovoltaic characteristics of carbon-nanotube-based, barrier-free bipolar diode.

Journal Article ACS applied materials & interfaces · March 2012 Carbon nanotube (CNT) diodes with different channel length between L = 0.6 μm to 3.5 μm are fabricated on the same tube, and the electric and photovoltaic characteristics are investigated. It is found that although the open voltage of the diode increases r ... Full text Cite

Polymeric coatings on silver nanoparticles hinder autoaggregation but enhance attachment to uncoated surfaces.

Journal Article Langmuir : the ACS journal of surfaces and colloids · March 2012 The propensity of silver nanoparticles (AgNPs) having two different polymer coatings (poly(vinylpyrrolidone), PVP, or gum arabic, GA) to aggregate, or to deposit to a reference surface (silica), was explored as a basis for differentiating the effect of sur ... Full text Cite

CMOS-based carbon nanotube pass-transistor logic integrated circuits.

Journal Article Nature communications · February 2012 Field-effect transistors based on carbon nanotubes have been shown to be faster and less energy consuming than their silicon counterparts. However, ensuring these advantages are maintained for integrated circuits is a challenge. Here we demonstrate that a ... Full text Open Access Cite

Sulfur-doped zinc oxide (ZnO) Nanostars: Synthesis and simulation of growth mechanism

Journal Article Nano Research · 2012 We present a bottom-up synthesis, spectroscopic characterization, and ab initio simulations of star-shaped hexagonal zinc oxide (ZnO) nanowires. The ZnO nanostructures were synthesized by a low-temperature hydrothermal growth method. The cross-section of t ... Full text Cite

Electrophoretically induced aqueous flow through single-walled carbon nanotube membranes.

Journal Article Nature nanotechnology · January 2012 Electrophoresis, the motion of charged species through liquids and pores under the influence of an external electric field, has been the principle source of chemical pumping for numerous micro- and nanofluidic device platforms. Recent measurements of ion c ... Full text Cite

Size-controlled dissolution of organic-coated silver nanoparticles.

Journal Article Environmental science & technology · January 2012 The solubility of Ag NPs can affect their toxicity and persistence in the environment. We measured the solubility of organic-coated silver nanoparticles (Ag NPs) having particle diameters ranging from 5 to 80 nm that were synthesized using various methods, ... Full text Cite

Meditations on the ubiquity and mutability of nano-sized materials in the environment.

Journal Article ACS nano · November 2011 A wide variety of nanomaterials can be found naturally occurring in the environment, although finding and characterizing these materials remains a challenge due to their size. Recent studies in the field have shown that natural nanomaterials are common in ... Full text Cite

Photoluminescence from inner walls in double-walled carbon nanotubes: some do, some do not.

Journal Article Nano letters · October 2011 Double-walled carbon nanotubes (DWNTs) have recently been recognized as important members in the carbon nanotube family because they are expected to have certain unique properties. For example, DWNTs are expected to replace single-walled carbon nanotubes ( ... Full text Cite

Diode-pumped passively Q-switched Nd:YVO4 laser with a carbon nanotube saturable absorber

Journal Article Laser Physics · September 1, 2011 A diode end-pumped passively Q-switched Nd:YVO4 laser with a transmission-type single-walled carbon nanotube saturable absorber is first demonstrated in this paper. The maximum continuous wave (CW) output power of 477 mW is obtained at the incident pump po ... Full text Cite

Deposition of silver nanoparticles in geochemically heterogeneous porous media: predicting affinity from surface composition analysis.

Journal Article Environmental science & technology · June 2011 The transport of uncoated silver nanoparticles (AgNPs) in a porous medium composed of silica glass beads modified with a partial coverage of iron oxide (hematite) was studied and compared to that in a porous medium composed of unmodified glass beads (GB). ... Full text Cite

Synthesis of high-density, large-diameter, and aligned single-walled carbon nanotubes by multiple-cycle growth methods.

Journal Article ACS nano · May 2011 A dense array of parallel single-walled carbon nanotubes (SWNTs) as the device channel can carry higher current, be more robust, and have smaller device-to-device variation, thus is more desirable for and compatible with applications in future highly integ ... Full text Cite

Toxicity reduction of polymer-stabilized silver nanoparticles by sunlight

Journal Article Journal of Physical Chemistry C · March 24, 2011 The environmental and health impacts of nanomaterials are becoming important topics of research in recent years. The unique advantages offered by these nanomaterials in wide range of applications cannot be realized until these concerns are resolved. Among ... Full text Cite

More than the ions: the effects of silver nanoparticles on Lolium multiflorum.

Journal Article Environmental science & technology · March 2011 Silver nanoparticles (AgNPs) are increasingly used as antimicrobial additives in consumer products and may have adverse impacts on organisms when they inadvertently enter ecosystems. This study investigated the uptake and toxicity of AgNPs to the common gr ... Full text Cite

Polymeric coatings on nanoparticles prevent auto-aggregation but enhance attachment to uncoated surfaces

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · 2011 Cite

Viscous state effect on the activity of Fe nanocatalysts.

Journal Article ACS nano · November 2010 Many applications of nanotubes and nanowires require controlled bottom-up engineering of these nanostructures. In catalytic chemical vapor deposition, the thermo-kinetic state of the nanocatalysts near the melting point is one of the factors ruling the mor ... Full text Open Access Cite

H2 storage in microporous carbons from PEEK precursors

Journal Article Journal of Physical Chemistry C · August 19, 2010 Large surface area (524-3275 m2/g) microporous carbons (MPCs) derived from poly (etheretherketone), or PEEK, have been synthesized and categorized for their roles as H2 storage materials. It was found that, because of their very large surface areas (≥3000 ... Full text Open Access Cite

Piezopotential gated nanowire--nanotube hybrid field-effect transistor.

Journal Article Nano letters · August 2010 We report the first piezoelectric potential gated hybrid field-effect transistors based on nanotubes and nanowires. The device consists of single-walled carbon nanotubes (SWNTs) on the bottom and crossed ZnO piezoelectric fine wire (PFW) on the top with an ... Full text Open Access Cite

Characterization of single-walled carbon nanotubes synthesized using iron and cobalt nanoparticles derived from self-assembled diblock copolymer micelles

Journal Article Applied Organometallic Chemistry · August 1, 2010 We present a comparative study of single-walled carbon nanotubes grown using iron and cobalt nanoparticles as catalysts via the chemical vapor deposition approach.Monodispersed iron and cobalt oxide nanoparticleswith an average size of 2 nmwere prepared us ... Full text Cite

Design and synthesis of hierarchical MnO2 nanospheres/carbon nanotubes/conducting polymer ternary composite for high performance electrochemical electrodes.

Journal Article Nano letters · July 2010 For efficient use of metal oxides, such as MnO(2) and RuO(2), in pseudocapacitors and other electrochemical applications, the poor conductivity of the metal oxide is a major problem. To tackle the problem, we have designed a ternary nanocomposite film comp ... Full text Open Access Cite

NMR methods for characterizing the pore structures and hydrogen storage properties of microporous carbons.

Journal Article Journal of the American Chemical Society · June 2010 (1)H NMR spectroscopy is used to investigate a series of microporous activated carbons derived from a poly(ether ether ketone) (PEEK) precursor with varying amounts of burnoff (BO). In particular, properties relevant to hydrogen storage are evaluated such ... Full text Open Access Cite

Synthesis of copper nanocatalysts with tunable size using diblock copolymer solution micelles

Journal Article Journal of Physical Chemistry C · April 8, 2010 Self-assembled solution micelles prepared from polystyrene-b-poly(4- vinylpyridine) (PS-b-P4VP) and polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP), have been employed as templates to synthesize copper nanocatalysts which are regarded as an excellent catal ... Full text Open Access Cite

How catalysts affect the growth of single-walled carbon nanotubes on substrates.

Journal Article Advanced materials (Deerfield Beach, Fla.) · April 2010 Direct growth of single-walled carbon nanotubes (SWNTs) on flat substrates by chemical vapor deposition (CVD) is very important for the application of SWNTs in nanodevices. In the growth process, catalysts play an important role in controlling the structur ... Full text Cite

Effects of reabsorption and spatial trap distributions on the radiative quantum efficiencies of ZnO

Journal Article Physical Review B - Condensed Matter and Materials Physics · March 15, 2010 Ultrafast time-resolved photoluminescence spectroscopy following one- and two-photon excitations of ZnO powder is used to gain unprecedented insight into the surprisingly high external quantum efficiency of its "green" defect emission band. The role of exc ... Full text Open Access Cite

Recent developments in carbon nanotube sorting and selective growth

Journal Article MRS Bulletin · January 1, 2010 Due to their high carrier mobilities, electromigration resistance, and tailorable optical properties, carbon nanotubes are promising candidates for high-performance electronic and optoelectronic applications. However, traditional synthetic methods have lac ... Full text Cite

Aligned graphene nanoribbons and crossbars from unzipped carbon nanotubes

Journal Article Nano Research · January 1, 2010 Aligned graphene nanoribbon (GNR) arrays have been made by unzipping of aligned single-walled and few-walled carbon nanotube (CNT) arrays. Nanotube unzipping was achieved by a polymer-protected Ar plasma etching method, and the resulting nanoribbon array c ... Full text Cite

Beyond silicon: Carbon-based nanotechnology

Journal Article MRS Bulletin · January 1, 2010 For more than two decades, scientists and engineers have focused on impending limitations (from high-power densities and heat distribution to device patterning) that constrain the future miniaturization of conventional silicon technology. Thus far, academi ... Full text Cite

Micelle formation of long-chain imidazolium ionic liquids in aqueous solution measured by isothermal titration microcalorimetry

Journal Article Journal of Chemical and Engineering Data · 2010 Self-association of three long-chain imidazolium ionic liquids (ILs), [C12mim]Br, [C14mim]Br, and [C16mim]Br, in aqueous solution was studied by surface tension measurements over a temperature range from (278.15 to 328.15) K. Effects of temperature and hyd ... Full text Cite

Orthogonal orientation control of carbon nanotube growth.

Journal Article Journal of the American Chemical Society · January 2010 Carbon nanotubes (CNTs) have attracted attention for their remarkable electrical properties and have being explored as one of the best building blocks in nano-electronics. A key challenge to realize such potential is the control of the nanotube growth dire ... Full text Open Access Cite

Sorting carbon nanotubes by their diameter and number of walls

Journal Article Materials Research Society Symposium Proceedings · November 20, 2009 Double walled carbon nanotubes (DWNTs) were synthesized by chemical vapor deposition method using a metal mixture of cobalt and molybdenum, supported by titanium silicalite (TS-1). Ethanol was a carbon feeding source. After purifying steps, including oxida ... Cite

Density enhancement of aligned single-walled carbon nanotube thin films on quartz substrates by sulfur-assisted synthesis.

Journal Article Nano letters · October 2009 The density of the aligned single-walled carbon nanotubes (SWNTs) grown on quartz substrates is an important factor for the performance of fabricated electronic devices. It was discovered that the addition of a sulfur-containing compound (thiophene) to the ... Full text Cite

Decoration of gold nanoparticles on surface-grown single-walled carbon nanotubes for detection of every nanotube by surface-enhanced Raman spectroscopy.

Journal Article Journal of the American Chemical Society · October 2009 An electroless deposition method comprised of seed formation and subsequent seeded growth is developed for the decoration of surface-grown single-walled carbon nanotubes (SWCNTs) with gold nanoparticles of controlled size and interparticle distance. The de ... Full text Cite

Do inner shells of double-walled carbon nanotubes fluoresce?

Journal Article Nano letters · September 2009 The reported fluorescence from inner shells of double-walled carbon nanotubes (DWCNTs) is an intriguing and potentially useful property. A combination of bulk and single-molecule methods was used to study the spectroscopy, chemical quenching, mechanical ri ... Full text Cite

Carrier dynamics and photoexcited emission efficiency of ZnO:Zn phosphor powders

Journal Article Proceedings of SPIE - The International Society for Optical Engineering · June 15, 2009 Nonstoichiometric ZnO with an excess of Zn atoms (ZnO:Zn) has a long history of use as a green/monochrome phosphor in electron-excited vacuum fluorescent and field emission displays. The advent of ultraviolet lasers and light emitting diodes presents the p ... Full text Cite

Functionalized few-walled carbon nanotubes for mechanical reinforcement of polymeric composites.

Journal Article ACS nano · May 2009 Compared to single-walled carbon nanotubes (SWNTs) and more defective multiwalled carbon nanotubes (MWNTs), the thin few-walled carbon nanotubes (FWNTs) are believed to have extraordinary mechanical properties. However, the enhancement of mechanical proper ... Full text Cite

Phonon populations and electrical power dissipation in carbon nanotube transistors.

Journal Article Nature nanotechnology · May 2009 Carbon nanotubes and graphene are candidate materials for nanoscale electronic devices. Both materials show weak acoustic phonon scattering and long mean free paths for low-energy charge carriers. However, high-energy carriers couple strongly to optical ph ... Full text Cite

Organic solar cells using few-walled carbon nanotubes electrode controlled by the balance between sheet resistance and the transparency

Journal Article Applied Physics Letters · April 7, 2009 Organic photovoltaic devices (OPD) using high conductive transparent few-walled carbon nanotubes (FWNT) film prepared by spraying was fabricated as a selective hole collection. Photovoltaic response with different sheet resistance (Rs) and the transparency ... Full text Cite

Diameter-controlled vapor-solid epitaxial growth and properties of aligned ZnO nanowire arrays

Journal Article Journal of Physical Chemistry C · March 12, 2009 A facile, template-free method was used to grow large areas of well-aligned ZnO nanowire arrays on amorphous SiO 2 substrates. The arrays are composed of vertically aligned, single-crystalline, wurtzitic [001] ZnO nanowires whose diameters were easily cont ... Full text Cite

Direct observation of the strong interaction between carbon nanotubes and quartz substrate

Journal Article Nano Research · January 1, 2009 We present a chemical vapor deposition (CVD) method for the growth of uniform single-walled carbon nanotube (SWNT) arrays on a stable temperature (ST)-cut single crystal quartz substrate using a mixture of methanol and ethanol as carbon source. It is found ... Full text Cite

Role of catalysts in the surface synthesis of single-walled carbon nanotubes

Journal Article Nano Research · January 1, 2009 We demonstrate the role of catalysts in the surface growth of single-walled carbon nanotubes (SWNTs) by reviewing recent progress in the surface synthesis of SWNTs. Three effects of catalysts on surface synthesis are studied: type of catalyst, the relation ... Full text Cite

Carbon nanotube synthesis and organization

Journal Article Topics in Applied Physics · December 1, 2008 The synthesis, sorting and organization of carbon nanotubes are major challenges toward future applications. This chapter reviews recent advances in these topics, addressing both the bulk production and processing of carbon nanotubes, and their organizatio ... Cite

Pulsed laser CVD investigations of single-wall carbon nanotube growth dynamics

Journal Article Applied Physics A: Materials Science and Processing · December 1, 2008 The nucleation and rapid growth of single-wall carbon nanotubes (SWNTs) were explored by pulsed-laser assisted chemical vapor deposition (PLA-CVD). A special high-power, Nd:YAG laser system with tunable pulse width (>0.5 ms) was implemented to rapidly heat ... Full text Cite

Growth of high density aligned long single walled carbon nanotubes on quartz substrates using copper catalyst

Journal Article 5th Conference on Foundations of Nanoscience: Self-Assembled Architectures and Devices, FNANO 2008 · December 1, 2008 A method to grow high density perfectly-aligned single walled carbon nanotubes uniformly over large areas using catalyst like Cu, Mo and Mn is invented. The density of the parallel nanotubes can reach 10-50 nanotubes per micron width. The length of the nan ... Cite

Large-scale growth of millimeter-long single-crystalline ZnS nanobelts

Journal Article Journal of Solid State Chemistry · November 1, 2008 Millimeter-long single-crystalline hexagonal ZnS nanobelts were grown on specific locations on a wafer scale. This is the first time that the millimeter-scale ZnS nanobelt has been synthesized. The longest nanobelts are about 3 mm. The as-grown nanobelts w ... Full text Cite

Three dimensional single-walled carbon nanotubes.

Journal Article Nano letters · October 2008 We report a simple fabrication method of creating a three-dimensional single-walled carbon nanotube (CNT) architecture in which suspended CNTs are aligned parallel to each other along the conventionally unused third dimension at lithographically defined lo ... Full text Cite

INOR 621-Few walled carbon nanotubes in the mechanical reinforcement of poly vinyl alcohol

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · August 17, 2008 Link to item Cite

Room temperature purification of few-walled carbon nanotubes with high yield.

Journal Article ACS nano · August 2008 Purification of high-quality few-walled carbon nanotubes (fWNTs) was developed by slow but selective oxidation in hydrogen peroxide (H(2)O(2)) at room temperature. The purity, nanotubes' structure, and thermal stability of purified fWNTs were characterized ... Full text Cite

Horizontally aligned single-walled carbon nanotube on quartz from a large variety of metal catalysts.

Journal Article Nano letters · August 2008 Horizontally aligned single-walled carbon nanotubes (SWNTs) are highly desired for SWNT device applications. A large variety of metals including Fe, Co, Ni, Cu, Pt, Pd, Mn, Mo, Cr, Sn, Au, Mg, and Al successfully catalyzed the growth of such tubes on stabl ... Full text Cite

Growth of high-density parallel arrays of long single-walled carbon nanotubes on quartz substrates.

Journal Article Journal of the American Chemical Society · April 2008 Herein we report a CVD approach to prepare high-density and perfectly aligned arrays of long SWNTs on stable temperature (ST)-cut quartz substrates using copper as catalyst and ethanol as carbon source. Compared with earlier reports, we have demonstrated t ... Full text Cite

8. Large-scale growth of millimeter-long single-crystalline ZnS nanobelts

Journal Article Journal of Solid State Chemistry · 2008 Cite

Microwave impedance spectroscopy of dense carbon nanotube bundles.

Journal Article Nano letters · January 2008 We have performed impedance spectroscopy of dense carbon nanotube (CNT) bundles in the broad frequency range from 10 MHz to 67 GHz. Dense CNT bundles were formed on sharp tips from aqueous suspension by ac dielectrophoresis and incorporated into on-wafer t ... Full text Cite

Nanowires and carbon nanotubes

Journal Article · December 1, 2007 Due to their unique properties and novel applications, 1D structures such as nanowires and carbon nanotubes (CNTs) attracted a great deal of attention in the past few years. A variety of inorganic materials have been prepared in the form of nanowires by bo ... Full text Cite

Nanoscale dipole antennas based on long carbon nanotubes

Journal Article 2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings · December 1, 2007 In this paper, we present the grow of mm-long, well-aligned individual single wall carbon nanotubes (SWNTs) on flat substrates suitable for device fabrication. We also demonstrate the feasibility of using such long nanotubes as nanoscale antennas. To fabri ... Full text Cite

Doping and phonon renormalization in carbon nanotubes.

Journal Article Nature nanotechnology · November 2007 We show that the Raman frequency associated with the vibrational mode at approximately 1,580 cm(-1) (the G mode) in both metallic and semiconducting carbon nanotubes shifts in response to changes in the charge density induced by an external gate field. The ... Full text Cite

Four-probe measurements of carbon nanotubes with narrow metal contacts

Journal Article Physical Review B - Condensed Matter and Materials Physics · October 25, 2007 We find that electrons in single-wall carbon nanotubes may propagate substantial distances (tens of nanometers) under metal contacts. We perform four-probe transport measurements of the nanotube conductance and observe significant deviations from the stand ... Full text Cite

Microwave-assisted functionalization of single-wall carbon nanotubes through diazonium.

Conference Journal of nanoscience and nanotechnology · October 2007 Single-wall carbon nanotubes (SWNTs) have been functionalized by a diazonium method through both a classical thermal reaction and a microwave-assisted reaction. The functionalized SWNTs have been characterized by nIR-Vis-UV absorption spectroscopy, Raman s ... Full text Cite

Catalytically active nanostructures derived from self-assembled block copolymer templates for rationally synthesizing single-walled carbon nanotubes and understanding the growth mechanism

Journal Article 2007 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2007, Technical Proceedings · August 24, 2007 Employing self-assembled catalyst-containing block copolymer templates, we have successfully generated a variety of highly ordered and uniform-sized catalytically active transition metal nanostructures. These catalystcontaining nanostructures have been use ... Cite

Few-walled carbon nanotubes for bulk applications

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · August 19, 2007 Link to item Cite

Evolution of transport regimes in carbon nanotube quantum dots.

Journal Article Physical review letters · August 2007 We study the evolution of conductance regimes in carbon nanotubes with doubly degenerate orbitals (shells) by controlling the contact transparency within the same sample. For sufficiently open contacts, Kondo behavior is observed for 1, 2, and 3 electrons ... Full text Cite

Scanning photovoltage microscopy of potential modulations in carbon nanotubes

Journal Article Applied Physics Letters · August 1, 2007 We use the locally generated photovoltage in carbon nanotubes to image potential modulations produced by defects. The correlation with spatially resolved spectroscopy of the disorder-enhanced Raman band allows us to locate the defects and to determine thei ... Full text Cite

Imaging of the Schottky barriers and charge depletion in carbon nanotube transistors.

Journal Article Nano letters · July 2007 The photovoltage produced by local illumination at the Schottky contacts of carbon nanotube field-effect transistors varies substantially with gate voltage. This is particularly pronounced in ambipolar nanotube transistors where the photovoltage switches s ... Full text Cite

SU(2) and SU(4) Kondo effects in carbon nanotube quantum dots

Journal Article Physical Review B - Condensed Matter and Materials Physics · June 25, 2007 We study the SU(4) Kondo effect in carbon nanotube quantum dots, where doubly degenerate orbitals form four-electron "shells." The SU(4) Kondo behavior is investigated for one, two, and three electrons in the topmost shell. While the Kondo state of two ele ... Full text Cite

Two-stage growth of single-walled carbon nanotubes

Journal Article Journal of Physical Chemistry C · May 3, 2007 The growth of single-walled carbon nanotubes (SWNTs) in a chemical vapor deposition (CVD) system is a complex process. In a typical growth mechanism, the process includes the nucleation stage, the growth stage, and the termination stage. However, most nano ... Full text Cite

Purification of semiconducting carbon nanotubes.

Journal Article Small (Weinheim an der Bergstrasse, Germany) · March 2007 Full text Cite

Effect of tungsten on the purification of few-walled carbon nanotubes synthesized by thermal chemical vapor deposition methods

Journal Article Journal of Physical Chemistry C · January 11, 2007 Few-walled carbon nanotubes (FWNTs) were synthesized by the methane chemical vapor deposition (CVD) method using binary catalysts Co/Mo and Co/W supported on MgO. It was found that Mo was not only a promoter for FWNT growth but also active in the formation ... Full text Cite

Nanoscale Dipole Antennas Based On Long Carbon Nanotubes

Conference 2007 7TH IEEE CONFERENCE ON NANOTECHNOLOGY, VOL 1-3 · 2007 Cite

Functional nanostructures from surface chemistry patterning.

Journal Article Physical chemistry chemical physics : PCCP · January 2007 Nanoscale devices are expected to provide important advances for a number of applications. While many methods to generate nanoscale patterns exist, their use is confined to a relatively narrow range of materials. To fabricate nanoscale structures of a mate ... Full text Cite

Dielectrophoresis-based assembly and high-frequency characterization of carbon nanotube bundles

Journal Article Materials Research Society Symposium Proceedings · January 1, 2007 the size of integrated circuit elements decreases, the properties of carbon nanotubes (CNTs) become increasingly attractive for interconnect applications. To be used by industry, full characterization of the electronic properties of CNT aggregates is essen ... Full text Cite

Catalytic chemical vapor deposition of single-walled carbon nanotubes

Journal Article · December 1, 2006 Carbon nanotubes (CNTs) have been widely studied in chemistry, physics, and material science because of their unique structures and properties. The progresses of fundamental research and applications in the field are closely linked to the preparation of hi ... Full text Cite

Synthesis of high-purity few-walled carbon nanotubes from ethanol/methanol mixture

Journal Article Chemistry of Materials · November 28, 2006 Few-walled carbon nanotubes (FWNTs) can be synthesized in a simple chemical vapor deposition (CVD) system using ethanol as the carbon source. However, the raw materials always contain a significant amount of impurities due to decomposition of ethanol molec ... Full text Cite

Persistent orbital degeneracy in carbon nanotubes

Journal Article Physical Review B - Condensed Matter and Materials Physics · November 6, 2006 The quantum-mechanical orbitals in carbon nanotube quantum dots are doubly degenerate over a large number of states. We argue that this experimental observation indicates that electrons are reflected without mode mixing at the nanotube-metal contacts. Two ... Full text Cite

Controlling the diameter of carbon nanotubes in chemical vapor deposition method by carbon feeding.

Journal Article The journal of physical chemistry. B · October 2006 It was found that the diameter distribution of single-walled carbon nanotubes (SWNTs) grown by the chemical vapor deposition (CVD) method could be controlled by the carbon feeding rate at the growth stage. A unified hypothesis on the relationship between n ... Full text Cite

Characterization of single wall carbon nanotubes by nonane preadsorption

Journal Article Carbon · August 1, 2006 The preferential blocking of the interior adsorption sites of single walled carbon nanotubes (SWNTs) by n-nonane is demonstrated. Following adsorption of n-nonane and evacuation for 24 h at 323 K, it was found that interior sites with diameters less than ∼ ... Full text Cite

Generating suspended single-walled carbon nanotubes across a large surface area via patterning self-assembled catalyst-containing block copolymer thin films.

Journal Article The journal of physical chemistry. B · June 2006 Using self-assembled block copolymers as templates, catalytically active nanostructures with controlled size and space have been produced. A self-assembled polystyrene-b-polyferrocenylsilane thin film and monolayer of surface micelles of cobalt-complexed p ... Full text Cite

Time-resolved investigation of bright visible wavelength luminescence from sulfur-doped ZnO nanowires and micropowders.

Journal Article Nano letters · June 2006 Sulfur-doped zinc oxide (ZnO) nanowires grown on gold-coated silicon substrates inside a horizontal tube furnace exhibit remarkably strong visible wavelength emission with a quantum efficiency of 30%, an integrated intensity 1600 times stronger than band e ... Full text Cite

Experimental measurement of single-wall carbon nanotube torsional properties.

Journal Article Physical review letters · June 2006 We report on the characterization of nanometer-scale torsional devices based on individual single-walled carbon nanotubes as the spring elements. The axial shear moduli of the nanotubes are obtained through modeling of device reaction to various amounts of ... Full text Cite

Catalytic chemical vapor deposition of single-walled carbon nanotubes

Chapter · May 30, 2006 Carbon nanotubes (CNTs) have been widely studied in chemistry, physics, and material science because of their unique structures and properties. The progresses of fundamental research and applications in the field are closely linked to the preparation of hi ... Full text Cite

Carbon nanotubes with small and tunable diameters from poly(ferrocenylsilane)-block-polysiloxane diblock copolymers.

Journal Article Langmuir : the ACS journal of surfaces and colloids · May 2006 Iron-containing nanostructures produced from various self-assembled poly(ferrocenylsilane)-block-polysiloxane thin films are catalytically active for the initiation and growth of high density, small diameter carbon nanotubes (CNTs). Moreover, the tube diam ... Full text Cite

Fabrication of small diameter few-walled carbon nanotubes with enhanced field emission property.

Journal Article Journal of nanoscience and nanotechnology · May 2006 A unique type of carbon nanotubes with 2 to 5 layers of sidewalls and diameters less than 10 nm was synthesized by the thermal chemical vapor deposition (CVD) method with MgO supported Fe/Mo catalyst. Unlike the typical CVD grown multi-walled carbon nanotu ... Full text Cite

An experience to remember for a lifetime

Journal Article JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY · May 1, 2006 Link to item Cite

Schottky diodes from asymmetric metal-nanotube contacts

Journal Article Applied Physics Letters · April 10, 2006 Carbon nanotube Schottky diodes were fabricated using asymmetric metal-nanotube contacts. These devices were prepared from semiconducting single-walled carbon nanotubes contacted by one Al or Ti electrode and one Au electrode. Nanotubes formed a low resist ... Full text Cite

Fabrication of ordered catalytically active nanoparticles derived from block copolymer micelle templates for controllable synthesis of single-walled carbon nanotubes.

Journal Article The journal of physical chemistry. B · April 2006 We report the use of the block copolymer micelle approach to produce various transition metal nanoparticles such as iron, cobalt, and nickel with precisely controlled size and spacing. These uniformly sized catalyst nanoparticles derived from the block cop ... Full text Cite

Guided growth of nanoscale conducting polymer structures on surface-functionalized nanopatterns.

Journal Article Journal of the American Chemical Society · March 2006 We describe an electrochemical method of directly growing conducting polymer nanostructures between metal electrodes with the geometry controlled by hydrophilic/hydrophobic patterns. The surface patterning can be achieved by a large number of lithographic ... Full text Cite

Conversion between hexagonal GaN and beta-Ga(2)O(3) nanowires and their electrical transport properties.

Journal Article Nano letters · February 2006 We have observed that the hexagonal GaN nanowires grown from a simple chemical vapor deposition method using gallium metal and ammonia gas are usually gallium-doped. By annealing in air, the gallium-doped hexagonal GaN nanowires could be completely convert ... Full text Cite

Exponential decay of local conductance in single-wall carbon nanotubes

Journal Article Physical Review B - Condensed Matter and Materials Physics · December 15, 2005 We have measured the decay of local conductance in single-wall carbon nanotubes directly using conductance imaging atomic force microscopy. The decay lengths were in the range from 190nm to well over 3μm. There are strong indications that these decay lengt ... Full text Cite

Centimetre-long carbon nanotubes from ethanol decomposition

Journal Article 2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings · December 1, 2005 Centimetre long carbon nanotubes were successfully grown from ethanol decomposition in chemical vapor deposition by using iron as the catalyst and silicon as the substrates. Ethanol is found to be a good carbon source to produce clean and long carbon nanot ... Cite

Single-walled carbon nanotubes with small diameter, controlled density and defined locations produced from catalyst-containing polymer films

Journal Article 2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings · December 1, 2005 We report CVD growth of single-walled carbon nanotubes (CNTs) using catalyst nanoparticles derived from the catalyst-containing polymers PMGI, PS-b-PVP, and PS-b-PFEMS. Polymeric materials have in general two main advantages in this application: the number ... Cite

A novel electrochemical sensor for nitric oxide using aligned RuO 2 nanowires on a Pt filament

Journal Article 2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings · December 1, 2005 A novel electrochemical sensor was prepared for detecting nitric oxide (NO) in biological materials using aligned ruthenium oxide nanowires deposited on a Pt filament by chemical vapor deposition (CVD) in two steps. First, ruthenium carbonyl (Ru 3(CO) 12) ... Cite

Enhanced electroluminescence in suspended carbon nanotube transistors

Journal Article Device Research Conference - Conference Digest, DRC · December 1, 2005 Although much progress has been made in the study of electronic transport properties of carbon nanotubes (CNTs), little work exists on their optoelectronic properties. Electrically excited infrared (1R) emission from single nanotube molecules has been rece ... Full text Cite

Bright infrared emission from electrically induced excitons in carbon nanotubes.

Journal Article Science (New York, N.Y.) · November 2005 We used the high local electric fields at the junction between the suspended and supported parts of a single carbon nanotube molecule to produce unusually bright infrared emission under unipolar operation. Carriers were accelerated by band-bending at the s ... Full text Cite

Magnetic nanowire based high resolution magnetic force microscope probes

Journal Article Applied Physics Letters · September 19, 2005 We report an efficient process for controlled fabrication of high-resolution magnetic force microscope probes using preformed magnetic nanowires. Nickel and cobalt nanowires produced by electrodeposition were directly assembled onto the tip of a commercial ... Full text Cite

Integrated single-walled carbon nanotube/microfluidic devices for the study of the sensing mechanism of nanotube sensors.

Journal Article The journal of physical chemistry. B · July 2005 A method to fabricate integrated single-walled carbon nanotube/microfluidic devices was developed. This simple process could be used to directly prepare nanotube thin film transistors within the microfluidic channel and to register SWNT devices with the mi ... Full text Cite

Chemical Vapor Depositions of single walled carbon nanotube thin films and their applications for sensors in aqueous solutions

Journal Article Materials Research Society Symposium Proceedings · June 20, 2005 High-density and high-quality single walled carbon nanotubes are directly grown on surface by Chemical Vapor Depositions. We found that those SWNT thin films could be used to fabricate thin film field-effect transistors. Those transistors are very sensitiv ... Cite

Growth and properties of Si-N-C-O nanocones and graphitic nanofibers synthesized using three-nanometer diameter iron/platinum nanoparticle-catalyst

Journal Article Journal of Materials Research · April 1, 2005 Cone-shaped nanostructures of mixed composition (nanocones) and largely graphitic nanofibers were synthesized on silicon substrates using iron/ platinum alloy nanoparticles as the catalyst in a direct-current plasma enhanced chemical vapor deposition react ... Full text Cite

Etching of carbon nanotubes by ozone--a surface area study.

Journal Article Langmuir : the ACS journal of surfaces and colloids · April 2005 The oxidative etching of single walled carbon nanotubes (SWNTs) is useful for opening the end caps and the sidewalls of the nanotubes to provide access to the interior. We have studied the effect of successive treatment of SWNTs by 95% pure O(3)(g), which ... Full text Cite

Raman spectroscopy and imaging of ultralong carbon nanotubes.

Journal Article The journal of physical chemistry. B · March 2005 Raman spectroscopy and confocal Raman imaging with 514 nm excitation was performed on recently developed ultralong carbon nanotubes grown by the "fast-heating" chemical vapor deposition (CVD) method. The ultralong nanotubes are found to consist of both sem ... Full text Cite

Effects of ionic surfactant adsorption on single-walled carbon nanotube thin film devices in aqueous solutions.

Journal Article Langmuir : the ACS journal of surfaces and colloids · February 2005 Field-effect transistors were fabricated using high-density single-walled carbon nanotube (SWNT) thin films directly grown on suitable substrates. Such approach eliminated the variations of device behaviors in individual SWNT devices by utilizing a large n ... Full text Cite

Bright, eye-matched visible emission from ZnO nanowires

Journal Article Optics InfoBase Conference Papers · January 1, 2005 Broadband, visible-wavelength emission of unprecedented brightness from ZnO nanowires is characterized by steady-state and ultrafast time-resolved spectroscopy. Energy transfer is explored by simultaneously studying the unusually fast decay of band edge em ... Cite

Bright, eye-matched visible emission from ZnO nanowires

Conference Optics InfoBase Conference Papers · January 1, 2005 Broadband, visible-wavelength emission of unprecedented brightness from ZnO nanowires is characterized by steady-state and ultrafast time-resolved spectroscopy. Energy transfer is explored by simultaneously studying the unusually fast decay of band edge em ... Full text Cite

Electrochemical detection of nitric oxide in biological fluids.

Journal Article Methods Enzymol · 2005 The challenges that must be overcome in order to detect nitric oxide (NO) in biological fluids include its low physiological concentration (1-nM) and its short half-life (a few seconds or less). Electrochemistry is capable of making such measurements, if c ... Full text Link to item Cite

Raman spectral imaging of a carbon nanotube intramolecular junction.

Journal Article Physical review letters · January 2005 Confocal Raman spectral imaging results are presented for a metal-to-semiconductor intramolecular junction (IMJ) on an isolated carbon nanotube. Spectra observed at the junction are consistent with the symmetry lowering expected from the occurrence of pent ... Full text Cite

Creation of Cadmium Sulfide Nanostructures Using AFM Dip-Pen Nanolithography

Journal Article Journal of Physical Chemistry B · 2005 Cite

SWNT and MWNT reinforced carbon nanocomposite fibrils

Journal Article International SAMPE Technical Conference · December 1, 2004 In this study the feasibility of using the more economically viable MWNT as an alternative to the high cost SWNT was examined. Both SWNT and MWNT were electrostatically assembled into continuous aligned nanocomposite fibrils through a co-electrospinning pr ... Cite

SWNT and MWNT reinforced carbon nanocomposite fibrils

Journal Article Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference · December 1, 2004 In this study the feasibility of using the more economically viable MWNT as an alternative to the high cost, low available SWNT was examined. Both SWNT and MWNT were electrostatically assembled into continuous aligned nanocomposite fibrils through a co-ele ... Cite

A simple chemical route to selectively eliminate metallic carbon nanotubes in nanotube network devices.

Journal Article Journal of the American Chemical Society · September 2004 Semiconducting-only single-walled carbon nanotube (SWNT) network field effect transistors (FETs) have been fabricated by selectively reacting all the metallic SWNTs in the devices with diazonium reagents in a controlled manner. We have shown that the conce ... Full text Cite

Lithium insertion into purified and etched multi-walled carbon nanotubes synthesized on supported catalysts by thermal CVD

Journal Article Carbon · August 23, 2004 The effects of chemical processing on Li insertion into multi-walled carbon nanotubes (MWNTs) are reported. MWNTs were synthesized on the supported catalysts by the thermal CVD method, purified and chemically etched. And then the purified MWNTs and the etc ... Full text Cite

Mobile ambipolar domain in carbon-nanotube infrared emitters.

Journal Article Physical review letters · August 2004 We spatially resolve the infrared light emission from ambipolar carbon-nanotube field-effect transistors with long-channel lengths. Electrons and holes are injected from opposite contacts into a single nanotube molecule. The ambipolar domain, where electro ... Full text Cite

Growth mechanism of oriented long single walled carbon nanotubes using "fast-heating" chemical vapor deposition process

Journal Article Nano Letters · June 1, 2004 The growth mechanism of long and aligned single walled carbon nanotubes using a recently reported "fast heating" chemical vapor deposition (CVD) method is discussed. The effect of heating speed at the initial stage of the CVD process has been systematicall ... Full text Cite

Nanoscale study of conduction through carbon nanotube networks

Journal Article Physical Review B - Condensed Matter and Materials Physics · May 1, 2004 We present local conductance measurements of carbon nanotube networks with nanometer scale resolution and show that there are discrete drops in conductance that correspond to junctions of metallic nanotubes and semiconducting nanotubes. The anomalies of th ... Full text Cite

Site-specific fabrication of nanoscale heterostructures: local chemical modification of GaN nanowires using electrochemical dip-pen nanolithography.

Journal Article Journal of the American Chemical Society · May 2004 This article describes a new method for site-specific, atomic force microscope (AFM) fabrication of nanowire heterostructures using electrochemical dip-pen nanolithography (E-DPN). We have demonstrated that E-DPN is ideally suited for the in situ modificat ... Full text Cite

Polymer electrolyte-gated carbon nanotube field-effect transistor

Journal Article Nano Letters · April 1, 2004 Single-walled carbon nanotube field-effect transistors were fabricated using solid electrolyte (PEO plus LiClO4) as gating materials. The SWNT FETs demonstrated strong gate-channel coupling with improved device characteristics compared with back-gated devi ... Full text Cite

Stokes and anti-Stokes Raman spectra of small-diameter isolated carbon nanotubes

Journal Article Physical Review B - Condensed Matter and Materials Physics · March 26, 2004 By measuring the anti-Stokes (AS) and Stokes (S) Raman spectra on the same isolated single-wall carbon nanotube (SWNT), we here determine the electronic transition energies Eiiexperimentally(Eiiexp), and then we compare these Eiiexpwith theEiivalues obtain ... Full text Cite

Studies of the chemical and pore structures of the carbon aerogels synthesized by gelation and supercritical drying in isopropanol

Journal Article Journal of Applied Polymer Science · March 5, 2004 The carbon aerogels prepared by a new method through gelation and supercritical drying in isopropanol were characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy, and a surface area analyzer. Their chemical structure, morphol ... Full text Cite

Solution-phase synthesis of single-crystalline iron phosphide nanorods/nanowires.

Journal Article Journal of the American Chemical Society · February 2004 A solution-phase route for the preparation of single-crystalline iron phosphide nanorods and nanowires is reported. We have shown that the mixture of trioctylphosphine oxide (TOPO) and trioctylphosphine (TOP), which are commonly used as the solvents for se ... Full text Cite

"Ultra-Long Single- Wall Carbon Nanotubes"

Journal Article Nature Materials · 2004 Cite

"Mobile ambipolar domain in carbon-nanotube infrared emitters"

Journal Article Physical Review Letters · 2004 Cite

Growth of aligned SWNT arrays from water-soluble molecular clusters for nanotube device fabrication

Journal Article Physical Chemistry Chemical Physics · January 1, 2004 A simple method to fabricate parallel and/or crossed networks of ultra-long single-walled carbon nanotube (SWNT) arrays based on carbon monoxide-chemical vapor deposition (CO-CVD) by a “fast-heating” growth process is reported. The catalysts which are wate ... Full text Cite

Recent Advances in Methods of Forming Carbon Nanotubes

Journal Article MRS Bulletin · January 1, 2004 Since their discovery, carbon nanotubes, both single-walled and multiwalled, have been a focus in materials research. Fundamental research and application development hinge on high-quality nanotube materials and controlled routes to their organization and ... Full text Cite

Stokes and anti-Stokes Raman spectra of small-diameter isolated carbon nanotubes

Journal Article Physical Review B - Condensed Matter and Materials Physics · 2004 By measuring the anti-Stokes (AS) and Stokes (S) Raman spectra on the same isolated single-wall carbon nanotube (SWNT), we here determine the electronic transition energies Eii experimentally (Eiiexp), and then we compare these Eiiexp with the Eii values o ... Cite

Controllable growth of single walled CNTs using nanotemplates from diblock copolymers

Journal Article Materials Research Society Symposium Proceedings · January 1, 2004 We use diblock copolymers as nanotemplates to produce various catalyst nanoclusters or catalyst-containing inorganic nanostructures with controlled size and spacing for carbon nanotube growth. We are able to generate periodically ordered catalytic nanostru ... Full text Cite

Controlling the sensing volume of metal nanosphere molecular sensors

Conference NANOENGINEERED ASSEMBLIES AND ADVANCED MICRO/NANOSYSTEMS · January 1, 2004 Link to item Cite

Controlling the sensing volume of metal nanosphere molecular sensors

Conference NANOENGINEERED ASSEMBLIES AND ADVANCED MICRO/NANOSYSTEMS · January 1, 2004 Link to item Cite

Oriented long single walled carbon nanotubes on substrates from floating catalysts

Journal Article Journal of Physical Chemistry B · December 4, 2003 A new and feasible method to prepare long and well-oriented SWNTs on substrates in large scale is developed by applying a floating catalyst chemical vapor deposition (CVD) process. The catalysts for SWNT growth come from the decomposition of iron pentacarb ... Full text Cite

Ultralong, Well-Aligned Single-Walled Carbon Nanotube Architectures on Surfaces

Journal Article Advanced Materials · October 2, 2003 The in-situ growth of ultralong single-walled carbon nanotubes (SWNT) arrays on surfaces with controllable location, orientation and length was presented. These structures were produced using produced using CO chemical vapor deposition (CVD) with fast heat ... Full text Cite

The fabrication and characterization of carbon aerogels by gelation and supercritical drying in isopropanol

Journal Article Advanced Functional Materials · July 1, 2003 We report a new method for the fabrication of carbon aerogels. Resorcinol and furfural were polymerized in isopropanol using HCl as a catalyst and the resulting alcogels-were then dried directly using supercritical isopropanol, followed by carbonization un ... Full text Cite

Thermal fluorination and annealing of single-wall carbon nanotubes

Journal Article Journal of Physical Chemistry B · June 19, 2003 Single-wall carbon nanotubes (SWNTs) were fluorinated with F2 at 250°C, and then some were heated under He to temperatures ranging from 100 to 400°C to desorb the fluorine. The resulting samples were studied with X-ray photoelectron spectroscopy, Raman spe ... Full text Cite

The growth of carbon nanostructures on cobalt-doped carbon aerogels

Journal Article Journal of Non-Crystalline Solids · April 15, 2003 By carbonizing cobalt-doped aerogel precursors directly at various temperatures, or by carbon monoxide decomposition of cobalt-doped carbon aerogels, different carbon nano-features such as carbon nano-filaments and graphitic nano-ribbons were grown on coba ... Full text Cite

Fabrication of activated carbon fibers/carbon aerogels composites by gelation and supercritical drying in isopropanol

Journal Article Journal of Materials Research · January 1, 2003 Activated carbon fiber/carbon aerogel (ACF/CA) composites were fabricated by gelling a mixture of ACF and resorcinol and furfural, followed by supercritical drying of the mixture in isopropanol. The product then went through carbonization in a nitrogen atm ... Full text Cite

Preparation of tungsten bronze nanowires

Journal Article Materials Research Society Symposium - Proceedings · January 1, 2003 Two simple techniques to prepare tungsten bronze nanowires are reported in this paper. Tungsten bronze nanowires with a diameter of less than 100nm and a length of more than 10 μm have been successfully prepared by employing these techniques. A Vapor-Liqui ... Full text Cite

Electrochemical AFM "dip-pen" nanolithography and more

Journal Article Chinese Journal of Inorganic Chemistry · December 1, 2002 A general approach for fabricating metallic and semiconducting nanostructures has been developed based on "dip-pen" nanolithography combined with electrochemical reduction of water-soluble salts. This method can be used to directly write many different typ ... Cite

Electrochemical AFM "Dip-Pen" Nanolithography and More

Journal Article Chinese Journal of Inorganic Chemistry · December 1, 2002 A general approach for fabricating metallic and semiconducting nanostructures has been developed based on dip-pen nanolithography combined with electrochemical reduction of water-soluble salts. This method can be used to directly write many different types ... Cite

Synthesis of nearly uniform single-walled carbon nanotubes using identical metal-containing molecular nanoclusters as catalysts.

Journal Article Journal of the American Chemical Society · November 2002 Uniform and small-diameter single-walled carbon nanotubes (SWNTs) have been produced using identical molecular nanoclusters containing Fe and Mo atoms with a defined molecular formula and a specific structure as catalysts in a chemical vapor deposition met ... Full text Cite

Tungsten Oxide Nanowires on Tungsten Substrates

Journal Article Nano Letters · August 1, 2002 A simple method was discovered to prepare tungsten oxide nanowires directly from tungsten metal. The structure and composition of the nanowires were characterized by high resolution tunneling electron microscopy (HRTEM) and energy dispersive X-ray scatteri ... Full text Cite

Efficient CVD Growth of Single-Walled Carbon Nanotubes on Surfaces Using Carbon Monoxide Precursor

Journal Article Nano Letters · August 1, 2002 Single Walled carbon nanotubes (SWNTs) were grown directly on flat substrates using chemical vapor deposition (CVD) method with carbon monoxide and hydrogen mixture as feeding gas. Comparing with other CVD methods, this new approach yields higher efficienc ... Full text Cite

Selective Coating of Single Wall Carbon Nanotubes with Thin SiO2 Layer

Journal Article Nano Letters · April 1, 2002 Single walled carbon nanotubes (SWNTs) have been shown to be highly sensitive gas sensors. However, attaching functional groups with selective sensing functions on nanotubes without destroying the intrinsic electronic property of the nanotubes is still cha ... Full text Cite

Thermal recovery behavior of fluorinated single-walled carbon nanotubes

Journal Article Journal of Physical Chemistry B · January 17, 2002 The thermal recovery behavior of fluorinated single-walled carbon nanotubes has been systematically examined by UV-vis-near-IR absorption spectroscopy, IR absorption spectroscopy and electric resistance measurements under different annealing temperatures. ... Full text Cite

Electrochemical dip-pen nanolithography of aniline and pyrrole

Journal Article American Chemical Society, Polymer Preprints, Division of Polymer Chemistry · January 1, 2002 Cite

Direct-writing of polymer nanostructures: poly(thiophene) nanowires on semiconducting and insulating surfaces.

Journal Article Journal of the American Chemical Society · January 2002 A new technique for direct-writing of polymer nanostructures on insulating and semiconducting surfaces based on Electrochemical Dip-Pen Nanolithography (E-DPN) is described. The technique is based on electrochemical polymerization of monomers directly unde ... Full text Cite

Electrochemical dip-pen nanolithography of aniline and pyrrole

Conference ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY · 2002 Cite

Au "Ink" for AFM "Dip-Pen" Nanolithography

Journal Article Langmuir · 2001 Cite

Lattice-oriented growth of single-walled carbon nanotubes

Journal Article Journal of Physical Chemistry B · July 20, 2000 Single-walled carbon nanotubes (SWNTs) with preferred 2D orientations were synthesized for the first time by chemical vapor deposition (CVD) of methane on silicon surfaces terminated with hydrogen, native oxide, and an ultrathin aluminum layer. The SWNTs g ... Full text Cite

Surface defect site density on single walled carbon nanotubes by titration

Journal Article Chemical Physics Letters · June 30, 2000 Closed end single walled carbon nanotubes (c-SWNT) purified by acidic oxidation have been studied in order to determine the fraction of oxidized carbon sites present. This has been done by measuring the evolution of CO2(g) and CO(g) on heating to 1273 K. F ... Full text Cite

A scalable CVD method for the synthesis of single-walled carbon nanotubes with high catalyst productivity

Journal Article Chemical Physics Letters · May 26, 2000 Single-walled carbon nanotubes (SWNT) are known to possess superior mechanical and electronic properties. However, the lack of methods for large-scale preparation limits fundamental research and application development of this unique material. Among all me ... Full text Cite

Enhancement of adsorption inside of single-walled nanotubes: Opening the entry ports

Journal Article Chemical Physics Letters · April 28, 2000 Opening the ends of the single-walled carbon nanotube by thermal activation increases both the kinetic rate and the saturation capacity of the nanotubes for Xe adsorption at 95 K. Infrared studies show the existence of carboxylic acid and quinone groups on ... Full text Cite

Infrared spectral evidence for the etching of carbon nanotubes: Ozone oxidation at 298 K [7]

Journal Article Journal of the American Chemical Society · March 15, 2000 Full text Cite

Physical adsorption of xenon in open single walled carbon nanotubes: observation of a quasi-one-dimensional confined Xe phase

Journal Article Journal of Chemical Physics · January 1, 2000 Xe adsorption experiments were performed on single wall carbon nanotubes. Fullerene pipes (o-SWNTs) and fullerene ropes (c-SWNT) with open and closed ends were studied under ultrahigh vacuum conditions. The elemental purity of the SWNTs was measured using ... Full text Cite

Elastic strain of freely suspended single-wall carbon nanotube ropes

Journal Article Applied Physics Letters · June 21, 1999 We have induced large elastic strains in ropes of single-wall carbon nanotubes, using an atomic force microscope in lateral force mode. Freely suspended ropes were observed to deform as elastic strings with tension proportional to elongation. Ropes were el ... Full text Cite

Solvation of fluorinated single-wall carbon nanotubes in alcohol solvents

Journal Article Journal of Physical Chemistry B · May 27, 1999 Highly purified single-wall carbon nanotubes (SWNTs) were fluorinated to form "fluorotubes", which were then solvated as individual tubes in various alcohol solvents via ultrasonication. The solvation of individual fluorotubes was verified by dispersing th ... Full text Cite

Hydrogen adsorption and cohesive energy of single-walled carbon nanotubes

Journal Article Applied Physics Letters · April 19, 1999 The capacity of single-walled carbon nanotubes for hydrogen sorption of 5-10 wt% at 1 bar near room temperature was investigated. A purified sample of SWNTs were cut and their robe structure was disrupted by sonication, and the modified SWNT was extracted ... Full text Cite

Reversible Sidewall Functionalization of Buckytubes

Journal Article Chemical Physics Lettera · 1999 Cite

Fullerene pipes

Journal Article Science (New York, N.Y.) · May 1998 Single-wall fullerene nanotubes were converted from nearly endless, highly tangled ropes into short, open-ended pipes that behave as individual macromolecules. Raw nanotube material was purified in large batches, and the ropes were cut into 100- to 300-nan ... Full text Cite

Fellerene Pipes

Journal Article Science · 1998 Cite

Large-scale purification of single-wall carbon nanotubes: Process, product, and characterization

Journal Article Applied Physics A: Materials Science and Processing · January 1, 1998 We describe, in detail, a readily scalable purification process capable of handling single-wall carbon nanotube (SWNT) material in large batches. Characterization of the resulting material by SEM, TEM, XRD, Raman scattering, and TGA shows it to be highly p ... Full text Cite

Fullerene 'crop circles'

Journal Article Nature · January 1, 1997 Full text Cite

Creation of nanocrystals via a tip-induced solid-solid transformation

Journal Article Materials Research Society Symposium - Proceedings · January 1, 1997 Scanning tunneling microscopy (STM) is a powerful tool for nanoscale research since it can both create and probe the properties of nanostructures. We have used STM to create T-phase TaSe2 nanocrystals embedded in H-phase TaSe2 through a tip-induced solid-s ... Cite

Creation of nanocrystals through a solid-solid phase transition induced by an STM tip

Journal Article Science · November 1, 1996 A scanning tunneling microscope (STM) was used to fabricate T-phase tantalum diselenide (TaSe2) nanocrystals with sizes ranging from 7 to more than 100 nanometers within the surface layer of 2H-TaSe2 crystals at liquid helium temperature. Atomic-resolution ... Full text Cite

Electron tunneling microscopy: A direct probe of metal substitution in BiSrCaCuO superconductors

Journal Article Inorganica Chimica Acta · February 29, 1996 Scanning tunneling microscopy (STM) exploits the extreme distance sensitivity of electron tunneling to achieve atomic resolution imaging of surfaces. The ability of STM to probe directly materials on the atomic scale has been exploited to elucidate the str ... Full text Cite

Probing complex low-dimensional solids with scanning probe microscopes: From charge density waves to high-temperature superconductivity

Journal Article Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures · January 1, 1996 Scanning probe microscopy (SPM) studies of low-dimensional solids have yielded significant advances in the understanding of collective phenomena in these complex materials. In this article, SPM studies from the authors' laboratory of charge density waves ( ... Full text Cite

Surface pinning as a determinant of the bulk flux-line lattice structure in copper oxide superconductors.

Journal Article Science (New York, N.Y.) · July 1994 Direct knowledge of crystal defects and their perturbation of magnetic flux lines is essential to understanding pinning and to devising approaches that enhance critical currents in superconductors with high critical temperatures (T(c)). Atomic force micros ... Full text Cite

Simultaneous observation of columnar defects and magnetic flux lines in high-temperature Bi2Sr2CaCu2O8 superconductors

Journal Article Science · 1994 Columnar defects generated by heavy-ion irradiation are promising structures for pinning magnetic flux lines and enhancing critical currents in superconductors with high transition temperatures. An approach that combines chemical etching and magnetic decor ... Cite