电催化用高熵合金的研究进展

Recent Progress of High-Entropy Alloys for Electrocatalysis

高熵合金(high-entropy alloys,HEAs)由于其广泛的成分可调性及独特的物理化学性质,有望成为良好的电催化剂材料,近年来得到了学术界的广泛关注。本综述系统地总结了HEA用于电催化领域的研究进展,分析概述了HEA电催化性能优势,并提出优化HEA基电催化材料的设计策略,包括形貌和尺寸控制、组分调控、应变工程、缺陷工程等;随后总结了HEA基电催化材料的制备方法,并特别关注了其在电解水制氢、氧还原、氧析出、醇类氧化、二氧化碳还原、氮还原等典型电催化领域的应用;最后对该领域所面临的挑战和机遇进行了展望。

High-entropy alloys(HEAs)are expected to become good electrocatalyst materials due to their wide composition adjustability and unique physical and chemical properties and have received widespread attention from the academic community in recent years.This review systematically summarizes the research progress of HEAs in the field of electrocatalysis,analyses the advantages of the electrocatalytic performance of HEAs,and proposes design strategies for optimizing HEA-based electrocatalytic materials,including morphology and size control,component regulation,strain engineering,defect engineering,etc.Subsequently,the preparation methods of HEA-based electrocatalytic materials are summarized,with special attention given to their applications in typical electrocatalytic fields such as the electrolysis of water for hydrogen evolution,oxygen reduction,oxygen evolution,alcohol oxidation,carbon dioxide reduction,and nitrogen reduction.Finally,the challenges and future opportunities faced by this research field are provided.