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Nano Research

Article Title

Nitrogen-carbon layer coated nickel nanoparticles for efficient electrocatalytic reduction of carbon dioxide

Authors

Dongxing Tan, Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Chaonan Cui, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Jinbiao Shi, Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Zhixun Luo, Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Bingxing Zhang, Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Xiuniang Tan, Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Buxing Han, Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Lirong Zheng, Beijng Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Jing Zhang, Beijng Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Jianling Zhang, Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Keywords

CO2 reduction, nickel nanoparticle, nitrogen-carbon layer, electrocatalytic activity, desity functional theory (DFT) calculation

Abstract

The application of nickel in electrocatalytic reduction of CO2 has been largely restricted by side reaction (hydrogen evolution reaction) and catalyst poisoning. Here we report a new strategy to improve the electrocatalytic performance of nickel for CO2 reduction by employing a nitrogen-carbon layer for nickel nanoparticles. Such a nickel electrocatalyst exhibits high Faradaic efficiency 97.5% at relatively low potential of −0.61 V for the conversion of CO2 to CO. Density functional theory calculation reveals that it is thermodynamically accomplishable for the reduction product CO to be removed from the catalyst surface, thus avoiding catalyst poisoning. Also, the catalyst renders hydrogen evolution reaction to be suppressed and hence reasonably improves catalytic performance.

Graphical Abstract

Publisher

Tsinghua University Press

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