Highly dispersed Co-Mo sulfide nanoparticles on reduced graphene oxide for lithium and sodium ion storage  

作　　者：Yuqing Liao Chun Wu Yaotang Zhong Min Chen Luyang Cai Huirong Wang Xiang Liu Guozhong Cao Weishan Li 

机构地区：[1]School of Chemistry,South China Normal University,Guangzhou,510006,China [2]College of Materials Science and Engineering,Changsha University of Science and Technology,Changsha,410114,China [3]National and Local Joint Engineering Research Center of MPTES in High Energy and Safety LIBs,Engineering Research Center of MTEES(Ministry of Education),and Key Lab.of ETESPG(GHEI),South China Normal University,Guangzhou,510006,China [4]School of Energy Science and Engineering,Nanjing Tech University,Nanjing,211816,China [5]Department of Materials Science and Engineering,University of Washington,Seattle,Washington,98195,USA

出　　处：《Nano Research》2020年第1期188-195,共8页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.21872058);the Key Project of Science and Technology in Guangdong Province(No.2017A010106006).

摘　　要：A novel hybrid,highly dispersed spinel Co-Mo sulfide nanoparticles on reduced graphene oxide(Co3S4/CoMo2S4@rGO),is reported as anode for lithium and sodium ion storage.The hybrid is synthesized by one-step hydrothermal method but exhibits excellent lithium and sodium storage performances.The as-synthesized Co3S4/CoMo2S4@rGO presents reversible capacity of 595.4 mA·h·g^−1 and 408.8 mA·h·g^−1 after 100 cycles at a current density of 0.2 A·g^−1 for lithium and sodium ion storages,respectively.Such superior performances are attributed to the unique composition and structure of Co3S4/[e-mail] rGO provides a good electronically conductive network and ensures the formation of spinel Co3S4/CoMo2S4 nanoparticles,the Co3S4/CoMo2S4 nanoparticles provide large reaction surface for lithium and sodium intercalation/deintercalation,and the spinel structure allows fast lithium and sodium ion diffusion in three dimensions.

关 键 词：Co-Mo sulfide NANOPARTICLE reduced graphene oxide lithium and sodium ion storage 

分 类 号：TB383[一般工业技术—材料科学与工程]