1. High Efficient Catalyst of N‐doped Carbon Modified Copper Containing Rich Cu−N−C Active Sites for Electrocatalytic CO2 Reduction.
- Author
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Sun, Yingxin, Jing, Haiyan, Wu, Zongdeng, Yu, Jia, Gao, Haiwen, Zhang, Yuehua, He, Guangyu, Lei, Wu, and Hao, Qingli
- Subjects
ELECTROLYTIC reduction ,CATALYSTS ,COPPER ,STANDARD hydrogen electrode ,MELAMINE ,CARBON dioxide reduction - Abstract
The synthesis of multi‐carbon products through electrochemical CO2 reduction reactions has attracted great interest from researchers. Herein, nitrogen‐ and carbon‐doped copper nanocatalyst (NC−Cu) containing abundant Cu−N−C active sites was prepared by thermal decomposition of the complexes containing copper and melamine. The NC−Cu catalyst exhibited an ideal current density of 22 mA cm−2 at −0.93 V versus reversible hydrogen electrode (vs. RHE) in CO2‐saturated 0.5 M KHCO3 medium, with ethanol as the predominant product at −0.93 V (vs. RHE) and a maximum Faraday efficiency of 31 %. The current density of the catalyst remained almost unchanged after 20 h of electrolysis, indicating its excellent stability. The excellent catalytic ability is attributed to the abundant Cu−N−C active sites of NC−Cu with 3D porous microstructure. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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