文献类型：期刊文献

英文题名：Chainmail Catalyst of Fe3O4@C/CNTO-Modified Celgard Separator with Low Metal Loading for High-Performance Lithium-Sulfur Batteries

作者：Du, Jingguang[1];Ahmed, Wacias[1];Xu, Jie[1];Zhang, Mingyuan[1];Zhang, Zhiliang[1];Zhang, Xinsheng[1];Niu, Dongfang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：5

期号：13

起止页码：3757

外文期刊名：CHEMISTRYSELECT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000520266000001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (No. 21972042) and the National Key R&D Program of China (No. 2017YFB0307502).

语种：英文

外文关键词：carbon nanotubes; functional separator; iron phthalocyanine; lithium-sulfur batteries; polar iron oxides

摘要：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 Fe3O4@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.