金属/过渡金属化合物莫特-肖特基析氢催化剂研究进展OA

Hydrogen energy as an ideal energy carrier holds significant importance for promoting the transformation of energy structures.Electrolytic water splitting technology is crucial to achieve large-scale hydrogen production.The hydrogen evolution activity,stability and cost of catalysts are the key factors for its development.Transition metal compounds(TMCs)become popular candidates to replace noble-metal catalysts due to their low costs,abundant resources and tunable electronic structures.Mott-Schottky(M-S)junctions,constructed between transition metal compound semiconductors and metals,are considered to be an effective strategy to enhance catalytic activity.This review summarizes the research progress of metal/TMCs M-S junction catalysts,including their classification(metal/oxides,sulfides,selenides,phosphides,and nitrides,etc.),construction strategies(hydrothermal method,in-situ reduction,and phosphidation treatment,etc.),and enhancement mechanisms.Research findings indicate that the M-S junction optimizes their electronic structure and hydrogen adsorption free energy through interfacial charge rearrangement and their formation of built-in electric fields,thereby promoting charge separation and transfer and significantly enhancing hydrogen evolution activity.In addition,the review discusses the key issues that still need in-depth exploration and clarification regarding M-S junction catalysts,and provides an outlook on future research directions and development trends.It aims to offer theoretical guidance for design of efficient and cost-effective hydrogen evolution electrocatalysts and to promote sustainable development of hydrogen energy technology.