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Transmission electron microscopy with atomic resolution under atmospheric pressures

Published online by Cambridge University Press:  21 November 2017

Sheng Dai ,
Wenpei Gao ,
Shuyi Zhang ,
George W. Graham  and
Xiaoqing Pan
Sheng Dai
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, USA
Wenpei Gao
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, USA
Shuyi Zhang
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, USA Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
George W. Graham
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, USA Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
Xiaoqing Pan*
Affiliation:
Department of Chemical Engineering and Materials Science, University of California Irvine, Irvine, California 92697, USA Department of Physics and Astronomy, University of California Irvine, Irvine, California 92697, USA
*
Address all correspondence to Xiaoqing Pan at xiaoqing.pan@uci.edu
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Abstract

Significant developments in micro-electrical-mechanical systems-based devices for use in transmission electron microscopy (TEM) sample holders have recently led to the commercialization of windowed gas cells that now enable the atomic-resolution visualization of phenomena occurring during gas–solid interactions at atmospheric pressure. In situ TEM study under atmospheric pressures provides unique information that is beneficial to correlating the structure–properties relationship of nanomaterials, particularly under real gaseous environments. We here provide a brief introduction of the advanced instrumentation of windowed gas cells and review recent progress of in situ atomic-resolution TEM study under atmospheric pressures, including some application examples of oxidation and reduction processes, dynamic growth of nanomaterials, catalytic reactions, and “operando” TEM.

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Prospective Articles
Information
MRS Communications , Volume 7 , Issue 4 , December 2017 , pp. 798 - 812
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Copyright © Materials Research Society 2017 

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