Zhang Ben, Zheng Yijuan, Ma Tian, Yang Chengdong, Peng Yifei, Zhou Zhihao, Zhou Mi, Li Shuang, Wang Yinghan, Cheng Chong
College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China.
West China School of Medicine/West China Hospital, Sichuan University, Chengdu, 610041, China.
Adv Mater. 2021 Apr;33(17):e2006042. doi: 10.1002/adma.202006042. Epub 2021 Mar 22.
Electrochemical water splitting has attracted significant attention as a key pathway for the development of renewable energy systems. Fabricating efficient electrocatalysts for these processes is intensely desired to reduce their overpotentials and facilitate practical applications. Recently, metal-organic framework (MOF) nanoarchitectures featuring ultrahigh surface areas, tunable nanostructures, and excellent porosities have emerged as promising materials for the development of highly active catalysts for electrochemical water splitting. Herein, the most pivotal advances in recent research on engineering MOF nanoarchitectures for efficient electrochemical water splitting are presented. First, the design of catalytic centers for MOF-based/derived electrocatalysts is summarized and compared from the aspects of chemical composition optimization and structural functionalization at the atomic and molecular levels. Subsequently, the fast-growing breakthroughs in catalytic activities, identification of highly active sites, and fundamental mechanisms are thoroughly discussed. Finally, a comprehensive commentary on the current primary challenges and future perspectives in water splitting and its commercialization for hydrogen production is provided. Hereby, new insights into the synthetic principles and electrocatalysis for designing MOF nanoarchitectures for the practical utilization of water splitting are offered, thus further promoting their future prosperity for a wide range of applications.
电化学水分解作为可再生能源系统发展的关键途径已引起广泛关注。人们迫切希望制备出用于这些过程的高效电催化剂，以降低其过电位并促进实际应用。近年来，具有超高表面积、可调控纳米结构和优异孔隙率的金属有机框架（MOF）纳米结构已成为开发用于电化学水分解的高活性催化剂的有前途的材料。本文介绍了近期在设计用于高效电化学水分解的MOF纳米结构方面最重要的研究进展。首先，从原子和分子水平的化学成分优化和结构功能化方面总结并比较了基于MOF的/衍生的电催化剂催化中心的设计。随后，深入讨论了催化活性、高活性位点的识别以及基本机制方面快速取得的突破。最后，对水分解及其制氢商业化当前面临的主要挑战和未来前景进行了全面评述。借此，为设计用于水分解实际应用的MOF纳米结构的合成原理和电催化提供了新的见解，从而进一步推动其在广泛应用中的未来发展。
