Chinese Journal of Catalysis ›› 2023, Vol. 48: 15-31.DOI: 10.1016/S1872-2067(23)64427-4

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Carbon-based catalysts of the oxygen reduction reaction: Mechanistic understanding and porous structures

Wenjing Zhang, Jing Li*(), Zidong Wei*()   

  1. School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
  • Received:2023-02-14 Accepted:2023-02-26 Online:2023-05-18 Published:2023-04-20
  • Contact: * E-mai: lijing@cqu.edu.cn (J. Li), zdwei@cqu.edu.cn (Z. Wei).
  • About author:Jing Li received her B.A. degree from Tianjin University in 1999, and Ph.D. degree from National University of Singapore in 2008. After postdoctoral research at the Fudan University, she joined the faculty of Tongji University as an associate professor in 2011 and Chongqing University as a professor in 2014. She has been in charge of 2 National Key Research and Development Program of China and 3 National Natural Science Foundation of China. Her research interests include porous materials, fuel cells and electrocatalysis. She has published more than 80 papers with citation over 8000 times.
    Zidong Wei is Professor in School of Chemistry and Chemical Engineering, Chongqing University. He received Bachelor degree from Shaanxi University of Science & Technology (1984), and Ph.D. degree from Tianjin University (1994). He has been in the field of electrochemical catalysis for more than 30 years and has published more than 300 papers with citation over 22000 times. He has been the Chief Scientist of the National Key Research and Development Program and the Chief Scientist of the National Natural Science Foundation. He edited or participated in the compilation of "Electrochemical Catalysis", "Chemical Process Intensification", "Electrocatalysis", “Electrocatalytic Oxygen Reduction Reaction” and other books. He won the first, second and third prizes of provincial and ministerial level natural sciences and technological progress once each. He is a council member in the Chemical Industry and Engineering Society of China, and Chinese Chemical Society.
  • Supported by:
    National Natural Science Foundation of China(22279012);Natural Science Foundation of Chongqing, China(CSTB2022NSCQ-MSX1167)

Abstract:

Carbon-based catalysts are potential substitutes for noble-metal catalysts in the oxygen reduction reaction (ORR) owing to their excellent electrical conductivities and chemical stabilities. To rationally design and accelerate the identification of highly efficient carbon-based ORR catalysts, improving the design of the active sites and microstructures is necessary. In this review, strategies for improving the intrinsic performances, activities, stabilities, and anti-poisoning properties of catalysts are analyzed. As a critical component of the microstructure, the porous structures of catalysts significantly affect their distributions of active sites and levels of mass transfer, which are also extensively analyzed. Finally, based on the formation of active sites and the fabrication of porous structures, conclusions and perspectives regarding the future development of highly efficient carbon-based electrocatalysts are provided.

Key words: Carbon-based catalyst, Oxygen reduction reaction, Active site, Porous structure, Electrocatalyst