Carbon dioxide electroreduction on single-atom nickel decorated carbon membranes with industry compatible current densities

Hengpan Yang, Qing Lin, Chao Zhang, Xinyao Yu, Zhong Cheng, Guodong Li, Qi Hu, Xiangzhong Ren, Qianling Zhang, Jianhong Liu and Chuanxin He ()
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Hengpan Yang: Shenzhen University
Qing Lin: Shenzhen University
Chao Zhang: Shenzhen University
Xinyao Yu: Shenzhen University
Zhong Cheng: Shenzhen University
Guodong Li: Shenzhen University
Qi Hu: Shenzhen University
Xiangzhong Ren: Shenzhen University
Qianling Zhang: Shenzhen University
Jianhong Liu: Shenzhen University
Chuanxin He: Shenzhen University

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Carbon dioxide electroreduction provides a useful source of carbon monoxide, but comparatively few catalysts could be sustained at current densities of industry level. Herein, we construct a high-yield, flexible and self-supported single-atom nickel-decorated porous carbon membrane catalyst. This membrane possesses interconnected nanofibers and hierarchical pores, affording abundant effective nickel single atoms that participate in carbon dioxide reduction. Moreover, the excellent mechanical strength and well-distributed nickel atoms of this membrane combines gas-diffusion and catalyst layers into one architecture. This integrated membrane could be directly used as a gas diffusion electrode to establish an extremely stable three-phase interface for high-performance carbon dioxide electroreduction, producing carbon monoxide with a 308.4 mA cm−2 partial current density and 88% Faradaic efficiency for up to 120 h. We hope this work will provide guidance for the design and application of carbon dioxide electro-catalysts at the potential industrial scale.

Date: 2020
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DOI: 10.1038/s41467-020-14402-0

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