Guo Yuxuan, Wang Kuaibing, Hong Ye, Wu Hua, Zhang Qichun
Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, Jiangsu, P. R. China.
Dalton Trans. 2021 Sep 7;50(33):11331-11346. doi: 10.1039/d1dt01729b. Epub 2021 Jul 27.
Two-dimensional (2D) metal-organic frameworks (MOFs) are a new generation of 2D materials that can provide uniform active sites and unique open channels as well as excellent catalytic abilities, interesting magnetic properties, and reasonable electrical conductivities. Thus, these MOFs are uniquely qualified for use in applications in energy-related fields or portable devices because they possess fast charge and discharge ability, high power density, and ultralong cycle life factors. There has been worldwide research interest in 2D conducting MOFs, and numerous techniques and strategies have been developed to synthesize these MOFs and their derivatives. Thus, this is the opportune time to review recent research progress on the development of 2D MOFs as electrodes in supercapacitors. This review covers synthetic design strategies, electrochemical performances, and working mechanisms. We will divide these 2D MOFs into two types on the basis of their conductive aspects: 2D conductive MOFs and 2D layered MOFs (including pillar-layered MOFs and 2D nanosheets). The challenges and perspectives of 2D MOFs are also provided.
二维（2D）金属有机框架（MOF）是新一代二维材料，可提供均匀的活性位点、独特的开放通道以及出色的催化能力、有趣的磁性和合理的电导率。因此，这些MOF因其具有快速充放电能力、高功率密度和超长循环寿命等因素，特别适合用于能源相关领域或便携式设备的应用。全球范围内对二维导电MOF都有研究兴趣，并且已经开发了许多技术和策略来合成这些MOF及其衍生物。因此，现在是回顾二维MOF作为超级电容器电极的最新研究进展的适当时机。本综述涵盖了合成设计策略、电化学性能和工作机制。我们将根据其导电方面将这些二维MOF分为两类：二维导电MOF和二维层状MOF（包括柱层状MOF和二维纳米片）。还介绍了二维MOF面临的挑战和前景。
