Chinese Journal of Catalysis ›› 2025, Vol. 68: 83-102.DOI: 10.1016/S1872-2067(24)60185-3

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Electrochemical CO2RR to C2+ products: A vision of dynamic surfaces of Cu-based catalysts

Jinxin Wang, Jiaqi Zhang*(), Chen Chen*()   

  1. Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing 100084, China
  • Received:2024-08-30 Accepted:2024-10-09 Online:2025-01-18 Published:2025-01-02
  • Contact: * E-mail: z-jq20@mails.tsinghua.edu.cn (J. Zhang),cchen@mail.tsinghua.edu.cn (C. Chen).
  • About author:Jiaqi Zhang (Department of Chemistry, Tsinghua University) received his B.S. degree from China University of Petroleum (East China) in 2020 and is currently pursuing his Ph.D. at Tsinghua University. His research focuses on nanomaterials for electrocatalysis and electrochemical synthesis.
    Chen Chen (Department of Chemistry, Tsinghua University) received his B.S. degree from the Department of Chemistry, Beijing Institute of Technology in 2006, and his Ph.D. degree from the Department of Chemistry, Tsinghua University in 2011. After postdoctoral work at Lawrence Berkeley National Laboratory, he joined the Department of Chemistry at Tsinghua University as an Associate Professor in 2015, and was promoted to Professor with tenure in 2021. His name is in the lists of Highly Cited Researchers 2021‒2023 from Clarivate. His research interests are focused on nanomaterials for catalysis and sustainable energy.
  • Supported by:
    National Key R&D Program of China(2023YFB4005100);National Natural Science Foundation of China(21925202);National Natural Science Foundation of China(U22B2071);Yunnan Provincial Science and Technology Project at Southwest United Graduate School(202302AO370017);International Joint Mission On Climate Change and Carbon Neutrality

Abstract:

Electrochemical reduction of CO2 (CO2RR) to form high-energy-density and high-value-added multicarbon products has attracted much attention. Selective reduction of CO2 to C2+ products face the problems of low reaction rate, complex mechanism and low selectivity. Currently, except for a few examples, copper-based catalysts are the only option capable of achieving efficient generation of C2+ products. However, the continuous dynamic reconstruction of the catalyst causes great difficulty in understanding the structure-performance relationship of CO2RR. In this review, we first discuss the mechanism of C2+ product generation. The structural factors promoting C2+ product generation are outlined, and the dynamic evolution of these structural factors is discussed. Furthermore, the effects of electrolyte and electrolysis conditions are reviewed in a vision of dynamic surface. Finally, further exploration of the reconstruction mechanism of Cu-based catalysts and the application of emerging robotic AI chemists are discussed.

Key words: Electrocatalysis, CO2RR, Cu-based catalyst, Reconstruction, Multicarbon product, Structural evolution