%0 Journal Article
%@ 00219797
%A Han, L.
%A Li, Y.
%A Yang, Y.
%A Sun, S.
%A Li, M.
%A Yue, J.
%A Chuah, C.Y.
%A Li, J.
%D 2022
%F scholars:16072
%I Academic Press Inc.
%J Journal of Colloid and Interface Science
%K 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
%P 144-153
%R 10.1016/j.jcis.2022.07.123
%T Zwitterionic covalent organic framework as a multifunctional sulfur host toward durable lithium-sulfur batteries
%U https://khub.utp.edu.my/scholars/16072/
%V 628
%X 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.
%Z cited By 11