Energy Storage Science and Technology ›› 2021, Vol. 10 ›› Issue (6): 1918-1930.doi: 10.19799/j.cnki.2095-4239.2021.0458

• Special issue of hydrogen energy and fuel cell • Previous Articles     Next Articles

Application of MXene-based nanomaterials in electrocatalysis for oxygen reduction reaction

Yuexia LI1,2(), Quanbing LIU3()   

  1. 1.School of Materials Science and Engineering, North University of China, Taiyuan 030051, Shanxi, China
    2.Shanxi University of Technology, Shuozhou 036000, Shanxi, China
    3.School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
  • Received:2021-09-03 Revised:2021-09-26 Online:2021-11-05 Published:2021-11-03
  • Contact: Quanbing LIU E-mail:yuexia393603890@163.com;liuqb@gdut.edu.cn

Abstract:

Oxygen reduction reaction (ORR) is a key process in fuel cell and metal-air cells, and whose sluggish reaction kinetics is the bottleneck restricting its development. MXene-based materials (including MXenes composite materials) as a new type of two-dimensional (2D) layered structural materials have unique structural features such as rich composition, high specific surface area and high chemical stability, tunable electronic state, a large number of exposed active sites and so on, and they are considered to be the most promising ORR electrocatalysts or electrocatalyst supports. Therefore, the development of high-performance MXene-based ORR catalysts provides a new way to accelerate the sluggish ORR of fuel cells and/ or metal-air battery cathodes. Herein, we classify and summarize the development of recent related literatures, reviewing of the design principles of MXene-based ORR catalysts, focusing on the latest research progress of MXenes and MXenes composite materials in terms of synthesis strategy, structure-activity relationship between components, morphology, structure and its electrocatalytic performance, as well as the electrocatalytic reaction mechanism of materials. Comprehensive analysis shows that MXenes composite materials, such as MXene/ transition metal oxides, MXene/ transition metal choridides, MXene/ transition metal nitrides, MXene/ carbon-based materials and MXene/ metal, are expected to achieve high performance and high stability of MXene-based ORR catalysts. Finally, some challenges in the current application of MXene-based nanomaterials are presented, and the future prospects of the MXene-based ORR electrocatalysts are proposed.

Key words: MXenes, electrocatalysts, oxygen reduction reaction, structure-activity relationship, reaction mechanism

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