High‐entropy alloys (HEAs) materials, as promising nanomaterials, have garnered significant attention from researchers due to their excellent performance in the field of hydrogen evolution reaction (HER). The four core effects of HEAs, including the high‐entropy effect, severe lattice distortion effect, sluggish diffusion effect, and cocktail effect, are pivotal in underpinning their remarkable mechanical and thermodynamic properties. Nevertheless, the intricate geometric and electronic structures of HEAs make their catalytic mechanisms exceptionally complex and challenging to decipher. In particular, a thorough analysis of the underlying factors responsible for the outstanding catalytic activity, selectivity, and the ability to maintain stable hydrogen production, even at high current densities, in HEAs is lacking. To provide a systematic exploration of the design and application of HEAs in HER systems, this review commences with an examination of the physicochemical properties of HEAs. It covers a wide range of topics, including the synthesis methods of HEAs, and the major reaction mechanisms of HERs, and presents innovative methods and approaches for designing HEAs specifically in the context of HERs.

中文翻译：

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高熵合金析氢反应电催化剂研究进展

高熵合金（HEA）材料作为一种有前景的纳米材料，由于其在析氢反应（HER）领域的优异性能而引起了研究人员的广泛关注。高熵合金的四大核心效应，包括高熵效应、严重的晶格畸变效应、缓慢扩散效应和鸡尾酒效应，是支撑其卓越的机械和热力学性能的关键。然而，HEA 复杂的几何和电子结构使其催化机制异常复杂且难以破译。特别是，缺乏对 HEA 出色的催化活性、选择性和即使在高电流密度下也能保持稳定产氢能力的根本因素的全面分析。为了对 HEA 在 HER 系统中的设计和应用进行系统探索，本综述首先检查 HEA 的物理化学性质。它涵盖了广泛的主题，包括 HEA 的合成方法和 HER 的主要反应机制，并提出了专门针对 HER 设计 HEA 的创新方法和途径。