MXene‐based Materials for Water Splitting: Synthesis and Modification

Abstract With abundant metal site and tunable electronic structure, MXene is considered as a promising electrocatalyst for the conversion of energy molecules. In this review, the latest research progress on inexpensive MXene‐based catalysts for water electrolysis is summarized. Typical preparation and modification methods and their advantages and disadvantages are briefly discussed, with a focus on the regulation and design of the surface interface electronic states, which improve the electrocatalytic performance of MXene‐based materials. The main strategies for the electronic state modification include end‐group modification, heteroatom doping, and heterostructure construction. Some limitations of MXene‐based materials, which should be considered in the rational design of advanced MXene‐based electrocatalyst, are also discussed. Finally, prospects for the rational design of Mxene‐based electrocatalysts is proposed.