In situ growth of mesoporous Co 3 O 4 nanoparticles on graphene as a high-performance anode material for lithium-ion batteries
石墨烯作为高性能锂离子电池负极材料原位生长介孔Co3O4纳米粒子
出版日期:2014
作者单位:aKeyLaboratoryofRadarImagingandMicrowavePhotonics(NanjingUniv.Aeronaut.Astronaut.),MinistryofEducation,CollegeofElectronicandInformationEngineering,NanjingUniversityofAeronauticsandAstronautics,Nanjing,210016,ChinabNationalLaboratoryofMicrostructuresandSchoolofElectronicScienceandEngineering,NanjingUniversity,Nanjing,China杂志名称:Materials Letters
卷号:119
期数:Complete
刊号:0167-577X
出版日期:2014
简介:Co3O4/graphenenanosheet(GNS)compositesweresynthesizedviatheinsitugrowthofmesoporousCo3O4nanoparticlesongraphene.Theas-preparedCo3O4/GNScompositesexhibitedsuperiorLi-ionbatteryperformanceandshowedalargereversiblecapacity,excellentcycling,andgoodratecapabilitywhenusedasananodematerialinlithiumionbatteries(LIBs).TheuniformcoatingofCo3O4aroundthegraphenesurfaceensuredtightelectricalcontact,resultinginamaterialwithhigherspecificcapacityandenhancedcyclingperformancecomparedwithpureCo3O4electrodes.Thecompositesdeliveredareversiblecapacityof900 mA h g?atadischargecurrentdensityof100 mA g?withgoodcyclingability.Moreover,thecompositesshowedexceptionalhigh-currentcharge-dischargeperformance,achieving650 mA h g?atacurrentdensityof1000 mA g?.