物理学报2012，Vol.61Issue(15)：401-406,6.
氧化石墨制备温度对石墨烯结构及其锂离子电池性能的影响
Effects of preparation temperature of graphite oxide on the structure of graphite and electrochemical properties of graphene-based lithium-ion batteries
摘要
Abstract
Graphite oxide is synthesized from graphite powder by a modified Hummers method,and the oxidation temperature is controlled in high-temperature oxidation process.By treating graphite oxide powders in a commercial microwave oven,graphene materials can be readily obtained.The morphologies,microstructures,specific surface areas and other features of the graphene and graphite oxide are characterized by FESEM,XPS,XRD and BET.Electrochemical performances of the lithium-ion batteries based on graphene anodes are investigated.The results show that graphene obtained at the oxidation temperature of 90℃in high-temperature oxidation process actually displays the most remarkable electrochemical performances,that is,the first discharge specific volume and charge capacity of graphene are as high as 1555.5 mAh/g and 1024.6 mAh/g,and after 30 cycles graphene still possess as high as a discharge capacity of 600 mAh/g.关键词
氧化石墨/石墨烯结构/锂离子电池/电化学性能Key words
graphene oxide/graphene structure/lithium ion battery/electrochemical properties分类
化学化工引用本文复制引用
黄乐旭,陈远富,李萍剑,黄然,贺加瑞,王泽高,郝昕,刘竞博,张万里,李言荣..氧化石墨制备温度对石墨烯结构及其锂离子电池性能的影响[J].物理学报,2012,61(15):401-406,6.基金项目
教育部新世纪人才计划 （）
中央高校基本科研业务费 （）
电子科技大学启动基金（批准号：Y02002010301041）资助的课题 （）
