Chem. J. Chinese Universities ›› 2023, Vol. 44 ›› Issue (5): 20220770.doi: 10.7503/cjcu20220770

• Review • Previous Articles     Next Articles

Advances in Nanofiber-based Electrocatalysts for Oxygen Reduction Reaction

LI Xuan2, QI Shuai1, ZHOU Weiliang1, LI Xiaojie1, JING Lingyan1, FENG Chao1, JIANG Xingxing1, YANG Hengpan1, HU Qi1(), HE Chuanxin1()   

  1. 1.College of Chemical and Environmental Engineering,Shenzhen University,Shenzhen 518071,China
    2.Department of Chemical Physics,University of Science and Technology of China,Hefei 230026,China
  • Received:2022-12-21 Online:2023-05-10 Published:2023-02-27
  • Contact: HU Qi, HE Chuanxin E-mail:hq2016@szu.edu.cn;hecx@szu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(U21A20312)

Abstract:

The excessive usage of fossil fuels is accompanied by the environmental pollution problems. Positively explore and develop green and sustainable energy conversion and storage technologies is of great significance to alleviate the environmental problems. Proton exchange membrane fuel cells(PEMFC) and metal air battery(MAB) stand out among many energy technologies. The oxygen reduction reaction(ORR), as critical part of PEMFC and MAB, seriously restrict the widespread use of PEMFC and MAB due to the multistep proton-electron coupling process and high energy barrier. The advantages of fiber structure, including high specific surface area, adjustable geometric structure, simple and convenient preparation, make it a new emerging architecture for the fabrication of electrocatalyst toward oxygen reduction reaction. In this review, the preparation of nanofibers and adjustable metal site in nanofiber-based electrocatalysts are summerized, and the latest progresses of nanofiber-based electrocatalyst toward ORR are discussed. Moreover, the structure-activity relationship of nanofiber-based electrocatalysts toward ORR is revealed. Finally, the challenges and opportunities of nanofiber-based electrocatalyst for ORR electro- catalysis are discussed.

Key words: Carbon nanofiber, Electrocatalysis, Oxygen reduction reaction, Metal site

CLC Number: 

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