Metal–organic frameworks (MOFs) have emerged as promising electrode materials for supercapacitors (SCs) due to their highly porous structures, tunable chemical compositions, and diverse morphologies. However, their applications are hindered by low conductivity and poor cycling performance. A novel approach for resolving this issue involves the growth of layered double hydroxides (LDHs) using MOFs as efficient templates or precursors for electrode material preparation. This method effectively enhances the stability, electrical conductivity, and mass transport ability of MOFs. The MOF-derived LDH exhibits a well-defined porous micro-/nano-structure, facilitating the dispersion of active sites and preventing the aggregation of LDHs. Firstly, this paper introduces synthesis strategies for converting MOFs into LDHs. Subsequently, recent research progress in MOF-derived LDHs encompassing pristine LDH powders, LDH composites, and LDH-based arrays, along with their applications in SCs, is overviewed. Finally, the challenges associated with MOF-derived LDH electrode materials and potential solutions are discussed.

中文翻译：

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金属有机骨架层状双氢氧化物电极材料：合成及其在超级电容器中的应用


金属有机框架（MOF）由于其高度多孔的结构、可调节的化学成分和多样化的形貌，已成为超级电容器（SC）有前途的电极材料。然而，它们的应用受到低电导率和较差的循环性能的阻碍。解决这一问题的一种新方法涉及使用 MOF 作为电极材料制备的有效模板或前体来生长层状双氢氧化物 (LDH)。该方法有效增强了MOF的稳定性、导电性和传质能力。 MOF衍生的LDH表现出清晰的多孔微/纳米结构，有利于活性位点的分散并防止LDH的聚集。首先，本文介绍了将 MOF 转化为 LDH 的合成策略。随后，概述了 MOF 衍生的 LDH 的最新研究进展，包括原始 LDH 粉末、LDH 复合材料和基于 LDH 的阵列，以及它们在 SC 中的应用。最后，讨论了与 MOF 衍生的 LDH 电极材料相关的挑战和潜在的解决方案。