TY  - JOUR
A1  - Han, L.
A1  - Li, Y.
A1  - Yang, Y.
A1  - Sun, S.
A1  - Li, M.
A1  - Yue, J.
A1  - Chuah, C.Y.
A1  - Li, J.
N2  - 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.
JF  - Journal of Colloid and Interface Science
Y1  - 2022///
ID  - scholars16072
SP  - 144
PB  - Academic Press Inc.
KW  - Carbon nanotubes; Cathodes; Condensation reactions; Decay (organic); Grafting (chemical); Lithium compounds
KW  -  Covalent organic frameworks; Cycling behavior; Grafting reactions; Lithium/sulfur batteries; Redox kinetics; Shuttle effect; Sulfur cathodes; Technical challenges; Zwitterion; Zwitterionics
KW  -  Lithium sulfur batteries
KW  -  1
KW  - 3
KW  - 5 benzenetricarboxaldehyde; 3
KW  - 8 diamino 6 phenylphenanthridine; aldehyde derivative; ampholyte; carbon nanotube; lithium; phenanthridine derivative; propanesultone; sulfur; unclassified drug
KW  -  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
EP  - 153
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85134895391&doi=10.1016%2fj.jcis.2022.07.123&partnerID=40&md5=fd0debfb2bf31c74f891eb9229626c48
AV  - none
N1  - cited By 11
TI  - Zwitterionic covalent organic framework as a multifunctional sulfur host toward durable lithium-sulfur batteries
VL  - 628
SN  - 00219797
ER  -