High-entropy intermetallics (HEIs) combining the advantages of ordered intermetallics and high-entropy alloys have been considered as highly promising candidates for electrocatalysis. Nevertheless, the comprehension and rational design of HEI electrocatalysts still lack a systematic summary. In this Review, we summarize the recent advances in HEI electrocatalysts and their applications in energy conversion reactions for the advancement of efficient electrocatalysts. At first, we propose the underlying thermodynamic mechanism and design principles of HEI electrocatalysts. After that, various synthetic strategies for HEI electrocatalysts are introduced. Furthermore, we highlight representative catalytic examples in important electrocatalytic reactions, such as the liquid fuel oxidation reaction (FOR), the oxygen reduction reaction (ORR), the hydrogen evolution reaction (HER), and so on. Finally, current issues and future perspectives on HEI electrocatalysts are presented.

中文翻译：

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高熵金属间化合物在电催化中的应用进展


高熵金属间化合物 （HEI） 结合了有序金属间化合物和高熵合金的优点，被认为是非常有前途的电催化候选者。然而，对 HEI 电催化剂的理解和合理设计仍然缺乏系统的总结。在这篇综述中，我们总结了 HEI 电催化剂的最新进展及其在能量转换反应中的应用，以推动高效电催化剂的发展。首先，我们提出了 HEI 电催化剂的基本热力学机理和设计原理。之后，介绍了 HEI 电催化剂的各种合成策略。此外，我们重点介绍了重要电催化反应中具有代表性的催化实例，例如液体燃料氧化反应 （FOR）、氧还原反应 （ORR）、析氢反应 （HER） 等。最后，介绍了 HEI 电催化剂的现状和未来展望。