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  Imaging the dynamics of catalysed surface reactions by in situ scanning electron microscopy

Barroo, C., Wang, Z.-J., Schlögl, R., & Willinger, M. G. (2019). Imaging the dynamics of catalysed surface reactions by in situ scanning electron microscopy. Nature Catalysis, 3, 30-39. doi:10.1038/s41929-019-0395-3.

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 Creators:
Barroo, Cedric1, 2, 3, Author              
Wang, Zhu-Jun1, 4, Author              
Schlögl, Robert1, Author              
Willinger, Marc Georg1, 4, Author              
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, Berlin, DE, ou_24023              
2Chemical Physics of Materials and Catalysis, Université libre de Bruxelles, Brussels, Belgium, ou_persistent22              
3Interdisciplinary Center for Nonlinear Phenomena and Complex Systems (CENOLI), Université libre de Bruxelles, Brussels, Belgium, ou_persistent22              
4Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zurich, Zurich, Switzerland, ou_persistent22              

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 Abstract: Analytical methods that provide direct real-space information about the dynamics of catalysed reactions often require simplified model systems and operate under high-vacuum conditions. There is thus a strong need for the development of methods that enable observation of active catalysts under relevant working conditions. Here, in situ scanning electron microscopy is employed to study reaction dynamics and structure–activity correlations on surfaces. High sensitivity to changes in the work function and surface composition enables the detection of monolayers of adsorbed molecular species on metal surfaces, which is used here to visualize catalytic NO2 hydrogenation on platinum. The initiation of reactive behaviours and propagation of reaction fronts, as well as the spillover of activated species revealed in real-time and across a large pressure range, demonstrate the power of in situ scanning electron microscopy as a surface science tool in the study of gas-phase- and temperature-induced processes.

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Language(s): eng - English
 Dates: 2019-03-162019-11-012019-12-16
 Publication Status: Published online
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1038/s41929-019-0395-3
 Degree: -

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Title: Nature Catalysis
  Abbreviation : Nat. Catal.
Source Genre: Journal
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Publ. Info: New York : Nature Publishing Group
Pages: 10 Volume / Issue: 3 Sequence Number: - Start / End Page: 30 - 39 Identifier: ISSN: 25201158
CoNE: https://pure.mpg.de/cone/journals/resource/25201158