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  Screening of material libraries for electrochemical CO2 reduction catalysts - Improving selectivity of Cu by mixing with Co

Grote, J.-P., Žeradjanin, A. R., Cherevko, S., Savan, A., Breitbach, B., Ludwig, A., et al. (2016). Screening of material libraries for electrochemical CO2 reduction catalysts - Improving selectivity of Cu by mixing with Co. Journal of Catalysis, 343, 248-256. doi:10.1016/j.jcat.2016.02.026.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-5521-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-E53E-D
Genre: Journal Article

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 Creators:
Grote, Jan-Philipp1, Author              
Žeradjanin, Aleksandar R.1, 2, Author              
Cherevko, Serhiy1, 2, Author              
Savan, Alan3, Author              
Breitbach, Benjamin4, Author              
Ludwig, Alfred3, Author              
Mayrhofer, Karl Johann Jakob1, 2, Author              
Affiliations:
1Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
2Helmholtz-Institute Erlangen-Nuremberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstrasse 3, 91058 Erlangen, Germany, ou_persistent22              
3Faculty of Mechanical Engineering, Ruhr-Universität Bochum, Universitätsstr. 150, Bochum, Germany, ou_persistent22              
4Structure and Nano-/ Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863398              

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Free keywords: Alloy; CO2 reduction; Cobalt; Copper; DEMS; Ethanol; Ethylene; Thin film
 Abstract: The efficiency of the direct electrochemical CO2 reduction can be improved by the development of new alloy catalysts, but to do so a highly resolved composition screening remains to be connected to complex sample preparation and time consuming analysis. We have developed a technique that allows a fast and easy initial catalyst composition screening by analyzing thin film composition spread samples, utilizing a scanning flow cell coupled to an online electrochemical mass spectrometer (SFC-OLEMS). As a first case example, the investigation of a Cu-Co thin film material library demonstrates the benefits and high potential of this approach. In particular, a shift in selectivity toward C2 species for low Co content (5-15at.%) has been found and is discussed as being related to changed adsorption energies of intermediate products and the consequent modification of reaction pathways. © 2016 Elsevier Inc.

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Language(s): eng - English
 Dates: 2015-09-302016-11-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.jcat.2016.02.026
 Degree: -

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Title: Journal of Catalysis
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: 9 Volume / Issue: 343 Sequence Number: - Start / End Page: 248 - 256 Identifier: ISSN: 0021-9517
CoNE: /journals/resource/954922645027