Journal
CHINESE JOURNAL OF CATALYSIS
Volume 43, Issue 8, Pages 2057-2090Publisher
ELSEVIER
DOI: 10.1016/S1872-2067(21)64030-5
Keywords
Hydrogen evolution reaction; MXene; Oxygen evolution reaction; Oxygen reduction reaction; Water splitting
Funding
- National Natural Science Foundation of China [22075099]
- Education Department of Jilin Province [JJKH20220967KJ]
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This article summarizes the progress of MXene-based electrocatalysts for the hydrogen evolution reaction, the oxygen evolution reaction, and the oxygen reduction reaction. It discusses the relationship between electrocatalytic properties and factors such as the elements, vacancies, and morphologies of MXenes. The importance of constructing heterojunctions between MXenes and other nanostructures is emphasized.
Two-dimensional carbides, nitrides, and carbonitrides (MXenes) play important roles in promoting the development of sustainable energy because they have abundant reactive sites on their surfaces. An increasing number of MXenes with diverse elements and composites have been predicted and synthesized for electrocatalysis applications since the first report of a Ti-Mo-based MXene for the hydrogen evolution reaction (HER). Herein, we summarize the progress of MXene-based electrocat-alysts for the HER, the oxygen evolution reaction, and the oxygen reduction reaction, including reg-ulated pristine MXenes and modified hybrid MXenes, from both theoretical and experimental per-spectives. A brief overview on MXene synthesis is presented first, accompanied by a discussion on the relationship between electrocatalytic properties and M, X, T, vacancies, and morphologies. After reviewing strategies in terms of atom substitution, functional modification, defect engineering, and morphology control, we emphasize the construction of heterojunctions between MXenes and other nanostructures, such as metal nanoparticles, oxides, hydroxides, sulfides, and phosphides. We final-ly discuss prospects for the future development of MXene-based electrocatalysts. (c) 2022, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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