2d Redox-Active Covalent Organic Frameworks For Supercapacitors: Design, Synthesis, And Challenges
SMALL(2021)
Abstract
Due to the tunable skeletons, variable pore environments, and predesignable structures, covalent organic frameworks (COFs) can be served as a versatile platform to tailor redox activities for efficient energy storage. Redox-active COFs with specific functional groups can not only promote high-speed mass transport in the permanently open channels, but also provide dense active sites for reversible redox reactions so as to efficiently adsorb the electrolyte ions, thus becoming emerging and promising electroactive materials. This review summarizes the design principles and synthetic methods of redox-active COFs, with a focus on surveying the representative advances in supercapacitors. The key progress, major challenges, and future directions in this promising field are highlighted as well.
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Key words
covalent organic frameworks, energy storage, pseudocapacitance, redox activities, supercapacitors
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