Zinc ion interactions in a two-dimensional covalent organic framework based aqueous zinc ion battery

Khayum M, A., Ghosh, M., Vijayakumar, V., Halder, A., Nurhuda, M., Kumar, S., Addicoat, M. ORCID: 0000-0002-5406-7927, Kurungot, S. and Banerjee, R., 2019. Zinc ion interactions in a two-dimensional covalent organic framework based aqueous zinc ion battery. Chemical Science. ISSN 2041-6520

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Abstract

The two-dimensional structural features of covalent organic frameworks (COFs) can promote the electrochemical storage of cations like H+, Li+, and Na+ through both faradaic and non-faradaic processes. However, the electrochemical storage of cations like Zn2+ ion is still unexplored although it bears a promising divalent charge. Herein, for the first time, we have utilized hydroquinone linked β-ketoenamine COF acting as a Zn2+ anchor in an aqueous rechargeable zinc ion battery. The charge-storage mechanism comprises of an efficient reversible interlayer interaction of Zn2+ ions with the functional moieties in the adjacent layers of COF (−182.0 kcal mol−1). Notably, due to the well-defined nanopores and structural organization, a constructed full cell, displays a discharge capacity as high as 276 mA h g−1 at a current rate of 125 mA g−1.

Item Type:	Journal article
Publication Title:	Chemical Science
Creators:	Khayum M, A., Ghosh, M., Vijayakumar, V., Halder, A., Nurhuda, M., Kumar, S., Addicoat, M., Kurungot, S. and Banerjee, R.
Publisher:	Royal Society of Chemistry
Date:	6 August 2019
ISSN:	2041-6520
Identifiers:	Number Type 10.1039/c9sc03052b DOI
Divisions:	Schools > School of Science and Technology
Record created by:	Jonathan Gallacher
Date Added:	15 Aug 2019 15:58
Last Modified:	15 Aug 2019 15:58
URI:	https://irep.ntu.ac.uk/id/eprint/37351

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