The search for efficient, earth-abundant electrocatalysts for the hydrogen evolution reaction (HER) has identified unsaturated molybdenum disulfide (MoS₂) as a leading candidate. This review synthesis recent advancements in the engineering of MoS₂ to enhance its electrocatalytic properties. It focuses on strategies for designing an unsaturated electronic structure on metal catalytic centers and their role in boosting the efficiency of the hydrogen evolution reaction (HER). It also considers how to optimize the electronic structures of unsaturated MoS₂ for enhanced catalytic performance. This review commences with an examination of the fundamental crystal structure of MoS₂; it elucidates the classical unsaturated electron configurations and the intrinsic factors that contribute to such electronic structures. Furthermore, it introduces popular strategies for constructing unsaturated electronic structures at the atomic level, such as nanostructure engineering, surface chemical modification and interlayer coupling engineering. It also discusses the challenges and future research directions in the study of MoS₂ electronic structures, with the aim of broadening their application in sustainable hydrogen production.

中文翻译：

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通过在 MoS₂ 中设计不饱和电子结构来增强电催化析氢


为析氢反应 （HER） 寻找高效、地球上丰富的电催化剂已确定不饱和二硫化钼 （MoS₂） 是主要候选者。本综述综合了 MoS₂ 工程的最新进展，以增强其电催化性能。它侧重于在金属催化中心上设计不饱和电子结构的策略及其在提高析氢反应 （HER） 效率中的作用。它还研究了如何优化不饱和 MoS₂ 的电子结构以增强催化性能。本综述首先检查了 MoS₂ 的基本晶体结构;它阐明了经典的不饱和电子构型和导致这种电子结构的内在因素。此外，它还介绍了在原子水平上构建不饱和电子结构的流行策略，例如纳米结构工程、表面化学改性和层间耦合工程。它还讨论了 MoS₂ 电子结构研究的挑战和未来的研究方向，以期拓宽其在可持续氢气生产中的应用。