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  Fluctuating Storage of the Active Phase in a Mn‐Na2WO4/SiO2 Catalyst for the Oxidative Coupling of Methane

Werny, M. J., Wang, Y., Girgsdies, F., Schlögl, R., & Trunschke, A. (2020). Fluctuating Storage of the Active Phase in a Mn‐Na2WO4/SiO2 Catalyst for the Oxidative Coupling of Methane. Angewandte Chemie International Edition, 59(35), 14921-14926. doi:10.1002/anie.202004778.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0006-A74F-6 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-D409-D
Genre: Journal Article

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2020
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 Creators:
Werny, Maximilian J.1, Author           
Wang, Yuanqing1, Author           
Girgsdies, Frank1, Author           
Schlögl, Robert1, Author           
Trunschke, Annette1, Author           
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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 Abstract: Structural dynamics of a Mn‐Na2WO4/SiO2 catalyst were detected directly under reaction conditions during the oxidative coupling of methane via in situ XRD and operando Raman spectroscopy. A new concept of fluctuating storage and release of an active phase in heterogeneous catalysis is proposed that involves the transient generation of active sodium oxide species via a reversible reaction of Na2WO4 with Mn7SiO12. The process is enabled by phase transitions and melting at the high reaction temperatures that are typically applied.

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Language(s): eng - English
 Dates: 2020-04-012020-05-042020-05-04
 Publication Status: Published online
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/anie.202004778
 Degree: -

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Title: Angewandte Chemie International Edition
  Abbreviation : Angew. Chem., Int. Ed.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: 6 Volume / Issue: 59 (35) Sequence Number: - Start / End Page: 14921 - 14926 Identifier: ISSN: 1433-7851
CoNE: https://pure.mpg.de/cone/journals/resource/1433-7851