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Metal–organic framework (MOF) derived porous carbon materials have been widely applied as active materials for supercapacitors due to their large specific surface area and ordered pore structure. This paper presents a facile and effective strategy to regulate the morphology of a zinc-based metal–organic framework (Zn-trimesic acid, Zn-BTC) by adjusting the ethanol content in a solvent, which can effectively change the pore structure of Zn-BTC derived porous carbon (PC). The optimal PC prepared in 50% ethanol displays a rodlike structure with a large specific surface area (SSA) of 1930 m2 g−1 and an average pore size of 2.9 nm. This material shows an excellent rate performance with 78.8% capacitance retention when the current density increases from 1 A g−1 to 100 A g−1 and outstanding electrochemical stability with only 2.2% decline of capacitance after 200 000 cycles at 50 A g−1. Moreover, the assembled symmetrical capacitor shows a high energy density of 16.09 W h kg−1 at 698 W kg−1 and 11.89 W h kg−1 at a high power density of 41.56 kW kg−1. This method would provide a new pathway for the preparation of carbon materials with an adjustable pore size for high-performance supercapacitors. [ABSTRACT FROM AUTHOR]

In the recent decades, in order to obtain more excellent performance and a wider range of applications of rechargeable lithium-ion batteries (LIBs), researchers have explored potential electrode materials. Metal-organic frameworks (MOFs) possess attractive features, such as large surface area, high porosity, tunable three-dimensional porous frameworks, and redox activity, making them a promising electrode material for LIBs. In this paper, we introduce the research progress on using MOFs directly as anode materials and cathode materials for LIBs. Subsequently, we mainly summarize the synthesis methods, structures and electrochemical properties of MOF-derived materials (porous carbon materials, single metal oxides, phosphides, LiCoO2, transition metal fluorides, etc.) used in lithium-ion battery electrode materials. Finally, the development trend of MOFs and derived materials as electrode materials for LIBs is proposed, and some ideas and suggestions for the next development and promotion of new electrode materials are provided. [ABSTRACT FROM AUTHOR]