The Role of Phase Mixing Degree in Promoting C−C Coupling in Electrochemical CO2 Reduction Reaction on Cu-based Catalysts

Wang，Yinuo1,2; Yang，Fei1,3; Xu，Hongming1,4; Jang，Juhee1; Delmo，Ernest P.1; Qiu，Xiaoyi1,2; Ying，Zhehan8; Gao，Ping1,2; Zhu，Shangqian1,5; Gu，M. Danny3,7; Shao，Minhua1,2,6

2024-04-15

10.1002/anie.202400952

Angewandte Chemie - International Edition   影响因子和分区

1433-7851

1521-3773

Cu-based catalysts have been identified as the most promising candidates for generation of C2+ products in electrochemical CO reduction reaction. Defect engineering in catalysts is a widely employed strategy for promoting C−C coupling on Cu. However, comprehensive understanding of defect structure-to-activity relationship has not been obtained. In this study, controllable defects generation is achieved, which leads to a series of Cu-based catalysts with various phase mixing degrees. It is observed that the Faradaic efficiency toward C2+ products increases with the phase mixing degree, reaching 81 % at maximum. In situ infrared absorption spectroscopy reveals that the catalysts with higher phase mixing degree tend to form *CO more easily and possess higher retention of *CO under high overpotential window, thereby promoting C−C coupling. This work sheds new light on the relationship between defects and C−C coupling, and the rational developed of more advanced Cu-base catalysts.

C2+ generation CO2 reduction reaction defects management infrared spectrum

SCI ; EI

英语

其他

CHEMISTRY

2-s2.0-85186548090

Scopus

1.Department of Chemical and Biological Engineering,The Hong Kong University of Science and Technology,Kowloon,Clear Water Bay,Hong Kong
2.Advanced Materials Thrust,The Hong Kong University of Science and Technology (Guangzhou) Nansha,Guangzhou,Guangdong,511400,China
3.Department of Materials Science and Engineering,Southern University of Science and Technology of China,Shenzhen,1088 Xueyuan Boulevard, Nanshan District, Guangdong,518055,China
4.Department of Chemistry,City University of Hong Kong,Kowloon,Tat Chee Avenue,Hong Kong
5.School of Chemistry and Chemical Engineering,Southeast University Jiangning District,Nanjing,Jiangsu,211189,China
6.Energy Institute,and Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution,The Hong Kong University of Science and Technology,Kowloon,Hong Kong
7.Eastern Institute for Advanced Study,Eastern Institute of Technology,Ningbo,Zhejiang,315200,China
8.Materials Characterization and Preparation Facility (Guangzhou),The Hong Kong University of Science and Technology (Guangzhou),Guangzhou,China

Wang，Yinuo,Yang，Fei,Xu，Hongming,et al. The Role of Phase Mixing Degree in Promoting C−C Coupling in Electrochemical CO2 Reduction Reaction on Cu-based Catalysts[J]. Angewandte Chemie - International Edition,2024,63(16).

Wang，Yinuo.,Yang，Fei.,Xu，Hongming.,Jang，Juhee.,Delmo，Ernest P..,...&Shao，Minhua.(2024).The Role of Phase Mixing Degree in Promoting C−C Coupling in Electrochemical CO2 Reduction Reaction on Cu-based Catalysts.Angewandte Chemie - International Edition,63(16).

Wang，Yinuo,et al."The Role of Phase Mixing Degree in Promoting C−C Coupling in Electrochemical CO2 Reduction Reaction on Cu-based Catalysts".Angewandte Chemie - International Edition 63.16(2024).