物理学报Issue(19)：1-8,8.DOI:10.7498/aps.63.198201
Co2SnO4/Graphene复合材料的制备与电化学性能研究
Preparation and electro chemical prop erties of Co2SnO4/graphene composites
摘要
Abstract
Co2SnO4/graphene composite has been prepared by multi-step synthetic process. Firstly, the formation of Co2SnO4 and the reduction of graphene oxide (GO) occur simultaneously during the hydrothermal process and the Co2SnO4 particles are uniformly embedded in the film-like graphene to form a mosaic structure. To characterize the phase and morphology of the composite material, X-ray diffraction (XRD), scanning electron microscope (SEM) are used. The constant current charge and discharge (CC), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are also used to test the electrochemical performance of Co2SnO4/graphene composite. Results show that graphene can effectively improve the electrochemical performance of Co2SnO4/graphene composite by its good dispersibility and high electrical conductivity. The composite material exhibits a first discharge specific capacity of 1415.2 mA·h/g with the specific capacity still higher than 469.7 mA·h/g after 50 cycles.关键词
Co2SnO4/石墨烯/电化学性能/锂离子电池Key words
Co2SnO4/reduced graphene oxide/electrochemical performance/lithium-ion battery引用本文复制引用
陈畅,汝强,胡社军,安柏楠,宋雄..Co2SnO4/Graphene复合材料的制备与电化学性能研究[J].物理学报,2014,(19):1-8,8.基金项目
国家自然科学基金(批准号:51101062,51171065)、广州市科技计划项目(批准号:2011J4100075)、广东高校优秀青年创新人才培育项目(批准号：LYM09052)、广东省自然科学基金重点项目(批准号：S2012020010937,10351063101000001)和华南师范大学研究生科研创新基金(批准号:2013KYJJ039)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant Nos.51101062,51171065), the Science and Technology Project of Guangzhou City, China (Grant No.2011J4100075), the Foundation for Distinguished Young Talents in Higher Education of Guangdong, China (Grant No. LYM09052), the Natural Science Foundation of Guangdong Province, China (Grant Nos. S2012020010937,10351063101000001), and the Graduate Student Research Innovation Fund of South China Normal University (Grant No.2013KYJJ039) （批准号:51101062,51171065）
