Developments and Advances in In Situ Transmission Electron Microscopy for Catalysis Research

2021 ◽  
Author(s):  
Lars I. van der Wal ◽  
Savannah J Turner ◽  
Jovana Zecevic
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Physicochemical Properties ◽  
Heterogeneous Catalysts ◽  
Catalysis Research ◽  
Transmission Electron

The characterization of heterogeneous catalysts is critical to their development and to understand their performance by correlating their physicochemical properties to their activity, selectivity and stability. Transmission electron microscopy (TEM)...

scholarly journals Practical Aspects of Electrochemical Corrosion Measurements During In Situ Analytical Transmission Electron Microscopy (TEM) of Austenitic Stainless Steel in Aqueous Media

2017 ◽  
Vol 23 (4) ◽  
pp. 741-750 ◽  
Author(s):  
Sibylle Schilling ◽  
Arne Janssen ◽  
Nestor J. Zaluzec ◽  
M. Grace Burke
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Aqueous Media ◽  
Electrochemical Corrosion ◽  
Electrochemical Reactions ◽  
Analytical Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Physical And Chemical

AbstractThe capability to perform liquid in situ transmission electron microscopy (TEM) experiments provides an unprecedented opportunity to examine the real-time processes of physical and chemical/electrochemical reactions during the interaction between metal surfaces and liquid environments. This work describes the requisite steps to make the technique fully analytical, from sample preparation, through modifications of the electrodes, characterization of electrolytes, and finally to electrochemical corrosion experiments comparing in situ TEM to conventional bulk cell and microcell configurations.

An Environmental Transmission Electron Microscope for in situ Synthesis and Characterization of Nanomaterials

2005 ◽  
Vol 20 (7) ◽  
pp. 1695-1707 ◽  
Author(s):  
Renu Sharma
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Elevated Temperatures ◽  
Dark Field ◽  
In Situ Synthesis ◽  
Synthesis And Characterization ◽  
Transmission Electron ◽  
Electron Microscopes

The world of nanomaterials has become the real world for most applications in the area of nanotechnology. As postsynthesis handling of materials at the nanoscale level is impractical, nanomaterials must be synthesized directly as part of a device or circuit. The demands of nanotechnology have led to modifications in the design of transmission electron microscopes (TEMs) that enable in situ synthesis and characterization simultaneously. The environmental TEM (ETEM) is one such modified instrument that has often been used to follow gas–solid and/or liquid–solid interactions at elevated temperatures. Although the history and development of the ETEM, also called the controlled atmosphere or environmental cell TEM, is as old as transmission electron microscopy itself, developments in the design of medium-voltage TEMs have succeeded in bringing resolutions down to the subnanometer level. A modern ETEM equipped with a field-emission gun, energy filter or electron energy-loss spectrometer, scanning transmission electron microscopy coils, and bright-field and dark-field detectors can be a versatile tool for understanding chemical processes at the nanometer level. This article reviews the design and operations of a dedicated ETEM. Its applications range from the in situ characterization of reaction steps, such as oxidation-reduction and hydroxylation, to the in situ synthesis of nanomaterials, such as quantum dots and carbon nanotubes. Some examples of the current and the future applications for the synthesis and characterization of nanomaterials are also discussed.

Direct characterization of the Li intercalation mechanism into α-V2O5 nanowires using in-situ transmission electron microscopy

2017 ◽  
Vol 110 (21) ◽  
pp. 213903 ◽  
Author(s):  
Arijita Mukherjee ◽  
Hasti Asayesh Ardakani ◽  
Tanghong Yi ◽  
Jordi Cabana ◽  
Reza Shahbazian-Yassar ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Transmission Electron
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