Journal Article

FZJ-2023-02714

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Bimetallic Copper–Silver Catalysts for the Electrochemical Reduction of CO 2 to Ethanol

Robens, E. (Corresponding author)FZJ*RWTH* ; Hecker, B.FZJ* ; Kungl, H.FZJ* ; Tempel, H.FZJ* ; Eichel, R.-A.FZJ*RWTH*

2023
ACS Publications Washington, DC

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Please use a persistent id in citations: doi:10.1021/acsaem.3c00985  doi:10.34734/FZJ-2023-02714

Abstract: The electrochemical reduction of carbon dioxide to ethanol is a promising way to make CO2 electrolysis economically feasible. In this work, a bimetallic catalyst of silver and copper is synthesized, and the effect of its copper content on the formation of ethanol is analyzed. By decreasing the near-surface copper content from 99 to 45% (measured by XPS) at a current density of −20 mA cm–2, the Faradaic efficiency of ethanol could be enhanced from 5 to 23%. Moreover, we show that with excess of CO, due to a lower copper and a higher silver near-surface content, the formation of ethanol is favored over ethylene.

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Contributing Institute(s):

1. Grundlagen der Elektrochemie (IEK-9)

Research Program(s):

1. 1221 - Fundamentals and Materials (POF4-122) (POF4-122)
2. 1232 - Power-based Fuels and Chemicals (POF4-123) (POF4-123)
3. HITEC - Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) (HITEC-20170406) (HITEC-20170406)
4. iNEW2.0 (BMBF-03SF0627A) (BMBF-03SF0627A)

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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