English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Cu−Zn Alloy Formation as Unfavored State for Efficient Methanol Catalysts

Frei, E., Gaur, A., Lichternberg, H., Zwiener, L., Scherzer, M., Girgsdies, F., et al. (2020). Cu−Zn Alloy Formation as Unfavored State for Efficient Methanol Catalysts. ChemCatChem, 12(16), 4029-4033. doi:10.1002/cctc.202000777.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files
hide Files
:
cctc.202000777.pdf (Publisher version), 6MB
Name:
cctc.202000777.pdf
Description:
-
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2020
Copyright Info:
The Author(s)

Locators

show

Creators

show
hide
 Creators:
Frei, Elias1, Author              
Gaur, Abhijeet2, Author
Lichternberg, Henning2, Author
Zwiener, Leon1, Author              
Scherzer, Michael1, Author              
Girgsdies, Frank1, Author              
Lunkenbein, Thomas1, Author              
Schlögl, Robert1, 3, Author              
Affiliations:
1Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
2Karlsruher Institut für Technologie Institute for Chemical Technology and Polymer Chemistry and Institute of Catalysis Research and Technology, Engesserstr. 20 76131 Karlsruhe (Germany), ou_persistent22              
3Department of Heterogeneous Reactions Max-Planck-Institute for Chemical Energy Conversion, Stiftstrasse 34–36 45470 Mühlheim an der Ruhr (Germany), ou_persistent22              

Content

show
hide
Free keywords: -
 Abstract: The active sites of Cu/ZnO‐based catalysts, commercially applied for the hydrogenation of CO2 or CO2‐rich synthesis gas, are still subject of current debates. Generally, the discussion is focused on the nature of the interfacial contact between Cu and ZnO, particularly whether it is rather of oxidic (Cu−ZnO) or alloying (Cu−Zn) character. We report on kinetic investigations on a Cu/ZnO : Al high performance catalyst activated at different temperatures. Incrementally increasing temperature under reductive conditions leads also to increased CuZn‐alloy formation, analyzed by in‐situ X‐ray diffraction, in‐situ X‐ray absorption spectroscopy and high resolution transmission electron microscopy. The combination of the catalytic data and the complementary characterization techniques provide valuable insights on the relevant reaction sites for CH3OH formation. Our results highlight the complexity of the interfacial contact with evidence for Cu−ZnO reaction sites and clarify the negative impact of CuZn alloy formation on the nature of the active site.

Details

show
hide
Language(s): eng - English
 Dates: 2020-05-122020-05-072020-05-122020-08-20
 Publication Status: Published online
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1002/cctc.202000777
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: ChemCatChem
  Other : ChemCatChem
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Weinheim : Wiley-VCH
Pages: 5 Volume / Issue: 12 (16) Sequence Number: - Start / End Page: 4029 - 4033 Identifier: ISSN: 1867-3880
CoNE: https://pure.mpg.de/cone/journals/resource/1867-3880