储能科学与技术 ›› 2021, Vol. 10 ›› Issue (6): 1918-1930.doi: 10.19799/j.cnki.2095-4239.2021.0458

• 氢能与燃料电池专刊 • 上一篇    下一篇

MXene基纳米材料在氧还原电催化中的应用

李月霞1,2(), 刘全兵3()   

  1. 1.中北大学材料与科学学院,山西 太原 030051
    2.山西工学院,山西 朔州 036000
    3.广东工业大学轻工化工学院,广东 广州 510006
  • 收稿日期:2021-09-03 修回日期:2021-09-26 出版日期:2021-11-05 发布日期:2021-11-03
  • 通讯作者: 刘全兵 E-mail:yuexia393603890@163.com;liuqb@gdut.edu.cn
  • 作者简介:李月霞(1984—),女,博士研究生,讲师,研究方向为新能源材料与器件,E-mail:yuexia393603890@163.com
  • 基金资助:
    山西省自然基金(青年)项目(201901D211267)

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

摘要:

氧气还原反应(ORR)是燃料电池和金属-空气电池中的一个关键过程,反应动力学缓慢是制约其发展的瓶颈。MXene基纳米材料(包括MXenes复合材料)作为一种新型的二维层状材料,具有丰富的组成、高比表面积和化学稳定性、可调电子状态、大量暴露的活性位点等独特的结构特点,被认为是当前最有前途的一类ORR电催化剂或载体。开发高性能MXene基ORR催化剂为加速燃料电池和金属-空气电池阴极的缓慢ORR提供了新的途径。本文通过对近期相关文献进行分类总结,综述了MXene基ORR催化剂的设计原则,着重介绍了MXenes和MXenes复合材料在合成策略,组分、形态、结构与其电催化性能之间的构效关系,以及材料电催化反应机理等方面的最新研究进展。综合分析表明,通过构建MXene/过渡金属氧化物、MXene/过渡金属硫族化物、MXene/过渡金属氮化物、MXene/碳基材料、MXene/金属等MXenes复合材料,有望获得高活性、高稳定性的MXene基ORR催化剂。最后,本文提出该类催化剂目前在实际应用中面临的挑战,并指出MXene基纳米材料在电催化ORR方面的未来发展趋势。

关键词: MXenes, 电催化剂, 氧还原反应, 构效关系, 反应机理

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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