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  Versatile Homebuilt Gas Feed and Analysis System for Operando TEM of Catalysts at Work

Plodinec, M., Nerl, H., Farra, R., Willinger, M. G., Stotz, E., Schlögl, R., et al. (2020). Versatile Homebuilt Gas Feed and Analysis System for Operando TEM of Catalysts at Work. Microscopy and Microanalysis, 26(2), 220-228. doi:10.1017/S143192762000015X.

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versatile_homebuilt_gas_feed_and_analysis_system_for_operando_tem_of_catalysts_at_work.pdf (Publisher version), 876KB
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versatile_homebuilt_gas_feed_and_analysis_system_for_operando_tem_of_catalysts_at_work.pdf
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2020
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 Creators:
Plodinec, Milivoj1, Author              
Nerl, Hannah1, Author              
Farra, Ramzi1, Author              
Willinger, Marc Georg1, Author              
Stotz, Eugen1, Author              
Schlögl, Robert1, 2, Author              
Lunkenbein, Thomas1, Author              
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2Max Planck Institute for Chemical Energy Conversion, Max Planck Society, Mülheim an der Ruhr, DE, ou_3023867              

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Free keywords: conversion detection, heterogeneous catalysis, Pt nanoparticles, temporal and spatial resolution, working conditions
 Abstract: Understanding how catalysts work during chemical reactions is crucial when developing efficient catalytic materials. The dynamic processes involved are extremely sensitive to changes in pressure, gas environment and temperature. Hence, there is a need for spatially resolved operando techniques to investigate catalysts under working conditions and over time. The use of dedicated operando techniques with added detection of catalytic conversion presents a unique opportunity to study the mechanisms underlying the catalytic reactions systematically. Herein, we report on the detailed setup and technical capabilities of a modular, homebuilt gas feed system directly coupled to a quadrupole mass spectrometer, which allows for operando transmission electron microscopy (TEM) studies of heterogeneous catalysts. The setup is compatible with conventional, commercially available gas cell TEM holders, making it widely accessible and reproducible by the community. In addition, the operando functionality of the setup was tested using CO oxidation over Pt nanoparticles.

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Language(s): eng - English
 Dates: 2020-01-142019-06-282020-02-0620202020-04
 Publication Status: Published in print
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1017/S143192762000015X
 Degree: -

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Title: Microscopy and Microanalysis
  Abbreviation : Microsc. Microanal.
Source Genre: Journal
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Publ. Info: New York, NY : Cambridge University Press
Pages: 9 Volume / Issue: 26 (2) Sequence Number: - Start / End Page: 220 - 228 Identifier: ISSN: 1431-9276
CoNE: https://pure.mpg.de/cone/journals/resource/991042731793414