Intimate atomic Cu-Ag interfaces for high CO2RR selectivity towards CH4 at low over potential

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Developing highly efficient electrochemical catalysts for carbon dioxide reduction reaction (CO2RR) provides a solution to battle global warming issues resulting from ever-increasing carbon footprint due to human activities. Copper (Cu) is known for its efficiency in CO2RR towards value-added hydrocarbons; hence its unique structural properties along with various Cu alloys have been extensively explored in the past decade. Here, we demonstrate a two-step approach to achieve intimate atomic Cu-Ag interfaces on the surface of Cu nanowires, which show greatly improved CO2RR selectivity towards methane (CH4). The specially designed Cu-Ag interfaces showed an impressive maximum Faradaic efficiency (FE) of 72% towards CH4 production at -1.17 V (vs. reversible hydrogen electrode (RHE)).
Publisher
TSINGHUA UNIV PRESS
Issue Date
2021-10
Language
English
Article Type
Article
Citation

NANO RESEARCH, v.14, no.10, pp.3497 - 3501

ISSN
1998-0124
DOI
10.1007/s12274-021-3639-x
URI
http://hdl.handle.net/10203/288021
Appears in Collection
MS-Journal Papers(저널논문)
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