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Redox Mediated Control of Electrochemical Potential in Liquid Cell Electron Microscopy.

Publication ,  Journal Article
Moreno-Hernandez, IA; Crook, MF; Ondry, JC; Alivisatos, AP
Published in: Journal of the American Chemical Society
August 2021

Liquid cell electron microscopy enables the study of nanoscale transformations in solvents with high spatial and temporal resolution, but for the technique to achieve its potential requires a new level of control over the reactivity caused by radical generation under electron beam irradiation. An understanding of how to control electron-solvent interactions is needed to further advance the study of structural dynamics for complex materials at the nanoscale. We developed an approach that scavenges radicals with redox species that form well-defined redox couples and control the electrochemical potential in situ. This approach enables the observation of electrochemical structural dynamics at near-atomic resolution with precise control of the liquid environment. Analysis of nanocrystal etching trajectories indicates that this approach can be generalized to several chemical systems. The ability to simultaneously observe heterogeneous reactions at near-atomic resolution and precisely control the electrochemical potential enables the fundamental study of complex nanoscale dynamics with unprecedented detail.

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Published In

Journal of the American Chemical Society

DOI

EISSN

1520-5126

ISSN

0002-7863

Publication Date

August 2021

Volume

143

Issue

31

Start / End Page

12082 / 12089

Related Subject Headings

  • General Chemistry
  • 40 Engineering
  • 34 Chemical sciences
  • 03 Chemical Sciences
 

Citation

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Chicago
ICMJE
MLA
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Moreno-Hernandez, I. A., Crook, M. F., Ondry, J. C., & Alivisatos, A. P. (2021). Redox Mediated Control of Electrochemical Potential in Liquid Cell Electron Microscopy. Journal of the American Chemical Society, 143(31), 12082–12089. https://doi.org/10.1021/jacs.1c03906
Moreno-Hernandez, Ivan A., Michelle F. Crook, Justin C. Ondry, and A Paul Alivisatos. “Redox Mediated Control of Electrochemical Potential in Liquid Cell Electron Microscopy.Journal of the American Chemical Society 143, no. 31 (August 2021): 12082–89. https://doi.org/10.1021/jacs.1c03906.
Moreno-Hernandez IA, Crook MF, Ondry JC, Alivisatos AP. Redox Mediated Control of Electrochemical Potential in Liquid Cell Electron Microscopy. Journal of the American Chemical Society. 2021 Aug;143(31):12082–9.
Moreno-Hernandez, Ivan A., et al. “Redox Mediated Control of Electrochemical Potential in Liquid Cell Electron Microscopy.Journal of the American Chemical Society, vol. 143, no. 31, Aug. 2021, pp. 12082–89. Epmc, doi:10.1021/jacs.1c03906.
Moreno-Hernandez IA, Crook MF, Ondry JC, Alivisatos AP. Redox Mediated Control of Electrochemical Potential in Liquid Cell Electron Microscopy. Journal of the American Chemical Society. 2021 Aug;143(31):12082–12089.
Journal cover image

Published In

Journal of the American Chemical Society

DOI

EISSN

1520-5126

ISSN

0002-7863

Publication Date

August 2021

Volume

143

Issue

31

Start / End Page

12082 / 12089

Related Subject Headings

  • General Chemistry
  • 40 Engineering
  • 34 Chemical sciences
  • 03 Chemical Sciences