Li Xiaofang, Wu Xin-Tao, Xu Qiang, Zhu Qi-Long
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences (CAS), Fuzhou, 350002, China.
Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China.
Adv Mater. 2024 Jul;36(27):e2401926. doi: 10.1002/adma.202401926. Epub 2024 Apr 28.
Ordered pore engineering that embeds uniform pores with periodic alignment in electrocatalysts opens up a new avenue for achieving further performance promotion. Hierarchically ordered porous metal-organic frameworks (HOP-MOFs) possessing multilevel pores with ordered distribution are the promising precursors for the exploration of ordered porous electrocatalysts, while the scalable acquisition of HOP-MOFs with editable components and adjustable pore size regimes is critical. This review presents recent progress on hierarchically ordered pore engineering of MOF-based materials for enhanced electrocatalysis. The synthetic strategies of HOP-MOFs with different pore size regimes, including the self-assembly guided by reticular chemistry, surfactant, nanoemulsion, and nanocasting, are first introduced. Then the applications of HOP-MOFs as the precursors for exploring hierarchically ordered porous electrocatalysts are summarized, selecting representatives to highlight the boosted performance. Especially, the intensification of molecule and ion transport integrated with optimized electron transfer and site exposure over the hierarchically ordered porous derivatives are emphasized to clarify the directional transfer and integration effect endowed by ordered pore engineering. Finally, the remaining scientific challenges and an outlook of this field are proposed. It is hoped that this review will guide the hierarchically ordered pore engineering of nanocatalysts for boosting the catalytic performance and promoting the practical applications.
在电催化剂中嵌入具有周期性排列的均匀孔隙的有序孔工程为实现进一步的性能提升开辟了一条新途径。具有多级有序分布孔隙的分级有序多孔金属有机框架(HOP-MOFs)是探索有序多孔电催化剂的有前途的前驱体,而可扩展地获取具有可编辑成分和可调孔径范围的HOP-MOFs至关重要。本文综述了基于MOF的材料用于增强电催化的分级有序孔工程的最新进展。首先介绍了具有不同孔径范围的HOP-MOFs的合成策略,包括由网状化学、表面活性剂、纳米乳液和纳米铸造引导的自组装。然后总结了HOP-MOFs作为探索分级有序多孔电催化剂前驱体的应用,选择代表性实例以突出其增强的性能。特别强调了在分级有序多孔衍生物上分子和离子传输的强化与优化的电子转移和位点暴露相结合,以阐明有序孔工程赋予的定向转移和整合效应。最后,提出了该领域仍然存在的科学挑战和展望。希望本文综述能指导纳米催化剂的分级有序孔工程,以提高催化性能并促进实际应用。