Boosting CO 2  Electroreduction to CH 4  via Tuning Neighboring Single-Copper Sites

Guan, Anxiang; Chen, Zheng; Quan, Yueli; Chen, Peng; Wang, Zhiqiang; Sham, Tsun‐Kong; Yang, Chao; Ji, Yali; Qian, Linping; Xu, Xin; Zheng, Gengfeng

doi:10.1021/acsenergylett.0c00018

articleACS Energy LettersFeb 6, 2020Closed access

Boosting CO 2 Electroreduction to CH 4 via Tuning Neighboring Single-Copper Sites

AGAnxiang Guan ZCZheng Chen YQYueli Quan PCPeng Chen ZWZhiqiang Wang

Fudan University · Western University

Indexed incrossref

Abstract

We report single-atom Cu catalysts dispersed on nitrogen-doped carbon by a nitrogen-coordination strategy. The presence of nitrogen enabled good dispersion and attachment of atomic Cu species on the nitrogen-doped carbon frameworks with Cu–Nx configurations. The Cu doping concentrations and Cu–Nx configurations were well-tuned by the pyrolysis temperature. At a high Cu concentration of 4.9%mol, the distance between neighboring Cu–Nx species was close enough to enable C–C coupling and produce C2H4. In contrast, at Cu concentrations lower than 2.4%mol, the distance between Cu–Nx species was large so that the electrocatalyst favored the formation of CH4 as C1 products. Density functional theory calculations…

Citation impact

528

total citations

FWCI: 16.49
Percentile: 100%
References: 53

Citations per year

Authors

11

Topics & keywords

Topics

Keywords

Copper
Nitrogen
Catalysis
Density functional theory
Pyrolysis
Electrocatalyst
Carbon fibers
Chemistry

No related works found for this paper.