Atomic Cu Sites Engineering Enables Efficient CO2 Electroreduction to Methane with High CH4/C2H4 Ratio

Nano-Micro Letters

Article

Wan Jiang¹  Fangzhou Zhang¹  Wei Luo¹  Yuanyuan Ma¹  Min Kuang¹  Jianping Yang¹  Minhan Li²  Ting Liao³  Ziqi Sun³ 

[1] Institute of Functional Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, People’s Republic of China;Institute of Functional Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, People’s Republic of China;College of Materials Science and Engineering, Zhengzhou University, 450001, Zhengzhou, People’s Republic of China;School of Mechanical, Medical and Process Engineering, School of Chemistry and Physics, Queensland University of Technology, 2 George Street, 4001, Brisbane, QLD, Australia;

关键词: CORR;    Cu single-atom catalyst;    g-CN;    Methane;    CH/CH ratio;   

DOI  :  10.1007/s40820-023-01188-1

 received in 2023-05-12, accepted in 2023-08-17,  发布年份 2023

来源: Springer

【 摘 要 】

tsThe Cu-doped graphitic carbon nitride (g-C3N4) material is synthesized by an in situ thermal polymerization strategy, through which the atomic dispersion and coordination structure of Cu on g-C3N4 are realized by regulating the doping level of Cu.High Faraday efficiency of CH4 of 49.04% and a maximum CH4/C2H4 ratio up to 35.03 are achieved for the first time on g-C3N4-supported Cu single-atom catalyst.Structure–activity relationship analysis based on experimental and theoretical studies demonstrates the well-defined Cu single atoms coordinated with N atoms in the nitrogen cavity of g-C3N4 are active sites for CO2-to-CH4.

【 授权许可】

CC BY   
© The Author(s) 2023

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