Han, L. and Li, Y. and Yang, Y. and Sun, S. and Li, M. and Yue, J. and Chuah, C.Y. and Li, J. (2022) Zwitterionic covalent organic framework as a multifunctional sulfur host toward durable lithium-sulfur batteries. Journal of Colloid and Interface Science, 628. pp. 144-153.
Full text not available from this repository.Abstract
The shuttle effect and slow redox kinetics of sulfur cathode are the most significant technical challenges to the practical application of lithium-sulfur (Li-S) battery. Herein, a novel zwitterionic covalent organic framework (ZW-COF) wrapped onto carbon nanotubes (CNTs), labeled as ZW-COF@CNT, is developed by a reversible condensation reaction of 1,3,5-benzenetricarboxaldehyde (BTA) and 3,8-diamino-6-phenylphenanthridine (DPPD) with CNTs as a template and a subsequently-one-step post-synthetic grafting reaction with 1,3-propanesultone. The experimental results showed that, after loading active material sulfur, zwitterionic ZW-COF@CNT can effectively suppress the shuttle effect of the soluble lithium polysulfides (LiPSs) in Li-S batteries, and exhibits better cycling behavior than the as-developed neutral COF@CNT. Specifically, the as-obtained ZW-COF@CNT based sulfur cathode can maintain a discharge capacity of 944 mAh/g after 100 cycles, while that of COF@CNT based sulfur cathode drops to (665 mAh/g) after 100 cycles. Moreover, the ZW-COF@CNT based sulfur cathode delivers an attractive prolonged cycling behavior with a low capacity decay rate of 0.046 per cycle at 1 C. This work sheds new light on rational selection and design of functionalized COFs based sulfur cathode in the Li-S battery. © 2022 Elsevier Inc.
Item Type: | Article |
---|---|
Impact Factor: | cited By 0 |
Uncontrolled Keywords: | Carbon nanotubes; Cathodes; Condensation reactions; Decay (organic); Grafting (chemical); Lithium compounds, Covalent organic frameworks; Cycling behavior; Grafting reactions; Lithium/sulfur batteries; Redox kinetics; Shuttle effect; Sulfur cathodes; Technical challenges; Zwitterion; Zwitterionics, Lithium sulfur batteries, 1,3,5 benzenetricarboxaldehyde; 3,8 diamino 6 phenylphenanthridine; aldehyde derivative; ampholyte; carbon nanotube; lithium; phenanthridine derivative; propanesultone; sulfur; unclassified drug, adsorption; Article; Brunauer Emmett Teller method; catalysis; chemical structure; controlled study; covalent bond; current density; electric conductivity; electrochemistry; immobilization; isotherm; molecular interaction; morphological trait; oxidation reduction reaction; polymerization; pore size distribution; surface area; synthesis |
Depositing User: | Mr Ahmad Suhairi Mohamed Lazim |
Date Deposited: | 07 Sep 2022 07:04 |
Last Modified: | 07 Sep 2022 07:04 |
URI: | http://scholars.utp.edu.my/id/eprint/33461 |