文献类型：期刊文献

英文题名：Carbon-based derivatives from metal-organic frameworks as cathode hosts for Li-S batteries

作者：Wu, Qingping[1,2];Zhou, Xuejun[2];Xu, Jun[1];Cao, Fahai[1];Li, Chilin[2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

年份：2019

卷号：38

起止页码：94

外文期刊名：JOURNAL OF ENERGY CHEMISTRY

收录：;EI(收录号：20190506439737);WOS:【SCI-EXPANDED(收录号:WOS:000477704600017)】；

基金：This work was supported by National Key R&D Program of China (2016YFB0901600), the National Natural Science Foundation of China (51772313, U1830113 and 51802334).

语种：英文

外文关键词：Lithium-sulfur batteries; Carbon-based derivatives; Metal-organic frameworks; Cathode host

摘要：Lithium-sulfur batteries (Li-S batteries) are promising candidates for the next generation high-energy rechargeable Li batteries due to their high theoretical specific capacity (1672 mAh g(-1)) and energy density (2500Wh kg(-1)). The commercialization of Li-S batteries is impeded by several key challenges at cathode side, e.g. the insulating nature of sulfur and discharged products (Li2S2 and Li2S2), the solubility of long-chain polysulfides and volume variation of sulfur cathode upon cycling. Recently, the carbonbased derivatives from metal-organic frameworks (MOFs) has emerged talent in their utilization as cathode hosts for Li-S batteries. They are not only highly conductive and porous to enable the acceleration of Li+/e(-) transfer and accommodation of volumetric expansion of sulfur cathode during cycling, but also enriched by controllable chemical active sites to enable the adsorption of polysulfides and promotion of their conversion reaction kinetics. In this review, based on the types of MOFs (e.g. ZIF-8, ZIF-67, Prussian blue, Al-MOF, MOF-5, Cu-MOF, Ni-MOF), the synthetic methods, formation process and morphology, structural superiority of MOFs-derived carbon frameworks along with their electrochemical performance as cathode host in Li-S batteries are summarized and discussed. (C) 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.