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Issue 34, 2018
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Covalent organic framework based microspheres as an anode material for rechargeable sodium batteries

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Abstract

Covalent organic frameworks (COFs) promise several benefits as materials in terms of gas adsorption, for use in optoelectronic devices, etc. However, the energy storage ability of COFs has not been well studied, especially in sodium batteries. In this report, for the first time, a covalent organic framework (COF), TFPB-TAPT COF, is used as an anode with high capacity in sodium batteries. The TFPB-TAPT COF exhibits an initial reversible capacity of 246 mA h gāˆ’1 and a capacity of 125 mA h gāˆ’1 is retained after 500 cycles. The TFPB-TAPT COF further exhibits Na+ ion storage capability at different current rates. The Na+ ion storage viability of the TFPB-TAPT COF arises mainly because of its open ordered nanoporous framework, which provides reversible accommodation for ions. This work opens up a promising new approach for further utilization of COFs as electrode materials in rechargeable sodium batteries.

Graphical abstract: Covalent organic framework based microspheres as an anode material for rechargeable sodium batteries

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Supplementary files

Article information


Submitted
05 Jun 2018
Accepted
06 Aug 2018
First published
08 Aug 2018

J. Mater. Chem. A, 2018,6, 16655-16663
Article type
Paper

Covalent organic framework based microspheres as an anode material for rechargeable sodium batteries

B. C. Patra, S. K. Das, A. Ghosh, A. Raj K, P. Moitra, M. Addicoat, S. Mitra, A. Bhaumik, S. Bhattacharya and A. Pradhan, J. Mater. Chem. A, 2018, 6, 16655
DOI: 10.1039/C8TA04611E

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