Molybdenum diselenide (MoSe₂), as a membrane of the representative 2D family, has been extensively used as an electrocatalyst for sustainable hydrogen evolution reaction (HER) due to its unique physicochemical properties as well as morphological and structural effects. Early reviews have summarized the applications of molybdenum dichalcogenides in photocatalysis and energy conversion and storage (batteries, supercapacitors, etc.). In this review, we highlight the recent advances in the preparation of single MoSe₂, (non)metal-doped MoSe₂, transition metal complex-integrated MoSe₂ heterojunction structure, and carbon-MoSe₂-based hybrid composite for enhancing HER performance through their morphological and structural features. Based on the structural engineering of MoSe₂-based materials, a comprehensive catalytic mechanism for improved HER activity is introduced, which includes the activation process of the catalyst, active sites, and surface reconstruction during HER. In addition, factors impacting the HER performance and structure–performance correlations among morphology, structure, and catalytic property are addressed. Finally, key issues that need to be solved, challenges presently confronted, as well as prospects in the future are explored. This review provides deep insights into the preparation of MoSe₂-based electrocatalysts with various morphologies and structures and a clear understandable mechanism of MoSe₂-based composite-catalyzed HER, which can help readers to further develop and expand the applications of transition metal dichalcogenide-based materials in renewable energy fields.

中文翻译：

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二硒化钼基电催化剂的制备及其在析氢反应中的应用研究进展

二硒化钼（MoSe ₂）作为具有代表性的二维家族膜，由于其独特的物理化学性质以及形态和结构效应，已被广泛用作可持续析氢反应（HER）的电催化剂。早期综述总结了二硫化钼在光催化和能量转换和存储（电池、超级电容器等）方面的应用。_{在这篇综述中，我们重点介绍了单MoSe 2}、（非）金属掺杂MoSe ₂、过渡金属复合集成MoSe ₂异质结结构和碳-MoSe ₂制备的最新进展基于杂化复合材料，通过其形态和结构特征来增强 HER 性能。基于MoSe ₂基材料的结构工程，介绍了提高HER活性的综合催化机制，包括催化剂的活化过程、活性位点和HER过程中的表面重构。此外，还讨论了影响 HER 性能的因素以及形态、结构和催化性能之间的结构-性能相关性。最后，探讨了需要解决的关键问题、当前面临的挑战以及未来的前景。_{这篇综述提供了对 MoSe 2}制备的深入见解具有各种形貌和结构的基于过渡金属二硫化物的电催化剂以及清晰易懂的MoSe ₂基复合催化HER机理，可以帮助读者进一步开发和拓展过渡金属二硫属化物基材料在可再生能源领域的应用。