Unveiling the potential of covalent organic frameworks for energy storage: Developments, challenges, and future prospects

Dubey, Prashant, Shrivastav, Vishal, Boruah, Tribani, Zoppellaro, Giorgio, Zbořil, Radek, Bakandritsos, Aristides and Sundriyal, Shashank 2024. Unveiling the potential of covalent organic frameworks for energy storage: Developments, challenges, and future prospects. Advanced Energy Materials , 2400521. 10.1002/aenm.202400521

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Abstract

Covalent organic frameworks (COFs) are porous structures emerging as promising electrode materials due to their high structural diversity, controlled and wide pore network, and amenability to chemical modifications. COFs are solely composed of periodically arranged organic molecules, resulting in lightweight materials. Their inherent properties, such as extended surface area and diverse framework topologies, along with their high proclivity to chemical modification, have positioned COFs as sophisticated materials in the realm of electrochemical energy storage (EES). The modular structure of COFs facilitates the integration of key functions such as redox‐active moieties, fast charge diffusion channels, composite formation with conductive counterparts, and highly porous network for accommodating charged energy carriers, which can significantly enhance their electrochemical performance. However, ascribing intricate porosity and redox‐active functionalities to a single COF structure, while maintaining long‐term electrochemical stability, is challenging. Efforts to overcome these hurdles embrace strategies such as the implementation of reversible linkages for structural flexibility, stimuli‐responsive functionalities, and incorporating chemical groups to promote the formation of COF heterostructures. This review focuses on the recent progress of COFs in EES devices, such as batteries and supercapacitors, through a meticulous exploration of the latest strategies aimed at optimizing COFs as advanced electrodes in future EES technologies.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Chemistry
Additional Information:	License information from Publisher: LICENSE 1: URL: http://creativecommons.org/licenses/by/4.0/
Publisher:	Wiley
ISSN:	1614-6832
Date of First Compliant Deposit:	3 May 2024
Last Modified:	03 May 2024 08:30
URI:	https://orca.cardiff.ac.uk/id/eprint/168687

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