Room temperature purification of few-walled carbon nanotubes with high yield.
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 by transmission electron microscopy (TEM), Raman spectroscopy, and thermogravimetric analysis (TGA), respectively. The results showed that fWNTs could be selectively purified by prolonging the stirring time in 30 wt % H(2)O(2) solution. Highly purified fWNTs were obtained, having a high G/D ratio in Raman spectra and good thermal stability indicating the good quality of the purified fWNTs. The approach provides a simple low cost method for purification that also has higher nanotube yield than other purification methods.
Duke Scholars
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Related Subject Headings
- Temperature
- Surface Properties
- Particle Size
- Nanotubes, Carbon
- Nanotechnology
- Nanoscience & Nanotechnology
- Molecular Conformation
- Materials Testing
- Macromolecular Substances
- Hydrogen Peroxide
Citation
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Temperature
- Surface Properties
- Particle Size
- Nanotubes, Carbon
- Nanotechnology
- Nanoscience & Nanotechnology
- Molecular Conformation
- Materials Testing
- Macromolecular Substances
- Hydrogen Peroxide