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Chainmail Catalyst of Fe 3 O 4 @C/CNTO‐Modified Celgard Separator with Low Metal Loading for High‐Performance Lithium–Sulfur Batteries
Author(s) -
Du Jingguang,
Ahmed Waqas,
Xu Jie,
Zhang Mingyuan,
Zhang Zhiliang,
Zhang Xinsheng,
Niu Dongfang
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000366
Subject(s) - catalysis , separator (oil production) , materials science , composite number , chemical engineering , polysulfide , electrocatalyst , coating , metal , nanotechnology , composite material , chemistry , electrode , metallurgy , electrochemistry , organic chemistry , physics , engineering , electrolyte , thermodynamics
Developing the conductive and catalytic composite interface is an efficient way to boost up the conversion of lithium polysulfide (LiPSs) that can effectively resolve the shuttle effect. Besides, achieving the high performance with low metal loading has practical significance for the commercialization of lithium–sulfur (Li−S) batteries. Herein, the chainmail catalyst of Fe 3 O 4 @C/CNTO was prepared by annealing the iron phthalocyanine (FePc)/oxidized carbon nanotubes (CNTO) precursor in which FePc was used as iron and carbon sources and CNTO was functionalized as oxygen source and catalyst support. The conductive composite catalyst with low metal loading (5.4 wt%) was applied into the coating layer of Celgard separator with duplex functions in trapping and catalyzing intercepted LiPSs for high‐performance Li−S batteries. This work can help us to understand the importance of conductive and catalytic composite interface for promotion of LiPSs conversion and also offer a more feasible synthesis method of electrocatalyst for other energy storage systems.