Khayum M, Abdul ; Ghosh, Meena ; Vijayakumar, Vidyanand ; Halder, Arjun ; Nurhuda, Maryam ; Kumar, Sushil ; Addicoat, Matthew ; Kurungot, Sreekumar ; Banerjee, Rahul (2019) Zinc ion interactions in a two-dimensional covalent organic framework based aqueous zinc ion battery Chemical Science, 10 (38). pp. 8889-8894. ISSN 2041-6520
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Official URL: http://doi.org/10.1039/C9SC03052B
Related URL: http://dx.doi.org/10.1039/C9SC03052B
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: | Article |
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Source: | Copyright of this article belongs to The Royal Society of Chemistry. |
ID Code: | 115704 |
Deposited On: | 16 Mar 2021 07:42 |
Last Modified: | 16 Mar 2021 07:42 |
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