层状双金属氢氧化物(LDH)及其复合物在电催化分解水的反应中表现出良好的催化性能,被认为是最有前途的电解水催化剂。基于材料的化学组成和结构特性,综述了LDH及其修饰作为电极材料在电催化分解水过程中的最新研究进展。着重分析了材料内部结构与电催化性能之间的联系,LDH与碳材料、金属化合物成功的杂化可增加电子的传输速率,从而提高了催化活性,单层LDH的催化活性明显高于体材料LDH。总结了该类材料在设计、合成等方面的相关策略,并对LDH基材料在电催化中的发展进行展望。
Layered Double Hydroxide (LDH) and its composites show high catalytic performance in the electrocatalytic decomposition of water,and are considered to be the most promising electrolytic water catalysts.Based on the chemical composition and structural properties of the material,the latest research progress of LDH and its modification as electrode materials in the process of electrocatalytic water splitting was reviewed.Focusing on the relationship between the internal structure of the material and the electrocatalytic performance,the successful hybridization of LDH with carbon materials and metal compounds can increase the electron transmission rate,thereby improving the catalytic activity.The catalytic activity of single-layer LDH was significantly higher than that of bulk materials LDH.The related strategies of this kind of materials in design and synthesis were summarized,and prospected the development of LDH group in electrocatalysis.
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