Chinese Journal of Catalysis ›› 2022, Vol. 43 ›› Issue (12): 3062-3088.DOI: 10.1016/S1872-2067(22)64132-9

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Rational design of bismuth-based catalysts for electrochemical CO2 reduction

Bo Zhanga, Yunzhen Wua, Panlong Zhaia, Chen Wanga, Licheng Sunb,c, Jungang Houa,*()   

  1. aState Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
    bCenter of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China
    cSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
  • Received:2022-04-05 Accepted:2022-05-13 Online:2022-12-18 Published:2022-10-18
  • Contact: Jungang Hou
  • About author:Prof. Jungang Hou is currently a full professor in Dalian University of Technology. He received his PhD degree from Tianjin University. He joined the faculty of University of Science and Technology Beijing and was promoted to associate professor in 2013. He worked in Tohoku University as a fellow of Japan Society for the Promotion of Science from 2014 to 2015. Since 2015, he became a full professor in Dalian University of Technology (DUT). His research interests focus on the development of photocatalysts and electrocatalysts, photocatalytic and electrocatalytic water splitting, CO2/N2 conversion to valuable chemicals and synthesis and applications of nanostructured materials.
  • Supported by:
    National Natural Science Foundation of China(21972015);National Natural Science Foundation of China(22088102);Young top talents project of Liaoning Province(XLYC1907147);Joint Research Fund Liaoning-Shenyang National Laboratory for Materials Science(2019JH3/30100003);Liaoning Revitalization Talent Program(XLYC2008032)

Abstract:

Sustainable conversion of carbon dioxide (CO2) to high value-added chemicals and fuels is a promising solution to solve the problem of excessive CO2 emissions and alleviate the shortage of fossil fuels, maintaining the balance of the carbon cycle in nature. The development of catalytic system is of great significance to improve the efficiency and selectivity for electrochemical CO2 conversion. In particular, bismuth (Bi) based catalysts are the most promising candidates, while confronting challenges. This review aims to elucidate the fundamental issues of efficient and stable Bi-based catalysts, constructing a bridge between the category, synthesis approach and electrochemical performance. In this review, the categories of Bi-based catalysts are firstly introduced, such as metals, alloys, single atoms, compounds and composites. Followed by the statement of the reliable and versatile synthetic approaches, the representative optimization strategies, such as morphology manipulation, defect engineering, component and heterostructure regulation, have been highlighted in the discussion, paving in-depth insight upon the design principles, reaction activity, selectivity and stability. Afterward, in situ characterization techniques will be discussed to illustrate the mechanisms of electrochemical CO2 conversion. In the end, the challenges and perspectives are also provided, promoting a systematic understanding in terms of the bottleneck and opportunities in the field of electrochemical CO2 conversion.

Key words: Bi-based catalysts, Electrochemical CO2 conversion, Design principle, Reaction activity, In situ characterization technique