TY  - JOUR
AU  - Robens, Elisabeth
AU  - Hecker, Burkhard
AU  - Kungl, Hans
AU  - Tempel, Hermann
AU  - Eichel, Rüdiger-A.
TI  - Bimetallic Copper–Silver Catalysts for the Electrochemical Reduction of CO 2 to Ethanol
JO  - ACS applied energy materials
VL  - 6
IS  - 14
SN  - 2574-0962
CY  - Washington, DC
PB  - ACS Publications
M1  - FZJ-2023-02714
SP  - 7571–7577
PY  - 2023
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001027010900001
DO  - DOI:10.1021/acsaem.3c00985
UR  - https://juser.fz-juelich.de/record/1009254
ER  -