钴-钼双金属碳化物修饰隔膜强化锂硫电池中多硫化锂的吸附和催化转化

作     者：张泽 王嘉楠 邵啊虎 熊冬根 刘建伟 劳成琰 郗凯 芦世瑶 江秋 吁霁 李黄龙 杨震宇 R.Vasant Kumar Ze Zhang;Jia-Nan Wang;A-Hu Shao;Dong-Gen Xiong;Jian-Wei Liu;Cheng-Yen Lao;Kai Xi;Shi-Yao Lu;Qiu Jiang;Ji Yu;Huang-Long Li;Zhen-Yu Yang;R.Vasant Kumar

作者机构：School of ChemistryNanchang UniversityNanchang 330031China Department of Materials Science and MetalliclurgyUniversity of CambridgeCambridge CB30FSUK Department of Environmental Science and EngineeringDepartment of Applied ChemistrySchool of ScienceKey Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter(Ministry of Education)State Key Laboratory for Electrical Insulation and Power EquipmentXi’an Jiaotong UnivrsityXi’an 710049China Department of EngineeringUniversity of CambridgeCB30FA CambridgeUK Department of ChemistryCity University of Hong KongTat Chee AvenueKowloonHong KongChina Department of Precision InstrumentTsinghua UniversityBeijing 10084China 

基　　金：supported by the National Natural Science Foundation of China(21863006,51662029,61974082 and 61704096) Youth Science Foundation of Jiangxi Province(20192BAB216001) Key Laboratory of Jiangxi Province for Environment and Energy Catalysis(20181BCD40004) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2020年第63卷第12期

页      码：2443-2455页

摘      要：本文报道了一种钴-钼双金属碳化物(Co3Mo3C)催化材料用于修饰锂硫电池隔膜,强化多硫化锂的化学吸附和催化转化.所组装的电池表现出优异的电化学性能,即使在8.0 mg cm^-2的硫面积负载量条件下,面积比容量仍高达6.8 mA h cm^-2.理论计算结果表明,相比于单一金属碳化物Mo2C,双金属碳化物Co3Mo3C具有更多的活性位点,更利于化学固定多硫化锂,并催化多硫化锂间相互转化;同时,Ni3Mo3C和Fe3Mo3C亦表现出类似的高催化活性.本研究对高性能锂硫电池关键催化材料的设计具有一定的指导意义.

主 题 词：金属碳化物 电化学性能 锂硫电池 催化材料 催化转化 化学固定 隔膜 Mo2C 

学科分类：0808[工学-自动化类] 07[理学] 08[工学] 070205[070205] 080501[080501] 0805[工学-能源动力学] 0702[理学-物理学类] 

核心收录：

D　O　I：10.1007/s40843-020-1425-2

馆 藏 号：203982019...