摘要
以氧化石墨、碳纳米管、三异丙氧基氧化钒为原料,采用化学刻蚀法、水热法、真空抽滤相结合方法制备一种具有三维离子扩散通道和整体导电网络结构的致密多孔石墨烯/碳纳米管@五氧化二钒(PGNs/CNT@V2O5)复合薄膜材料。电化学性能测试结果表明,在1mol/LLiNO3水系电解液中,电流密度为1A/g时,比容量高达187F/g,在100mV/s扫描速度下,循环5000次后,容量保持率仍为83.4%。
A densely porous graphene/carbon nanotubes@V 2 O 5(PGNs/CNT@V 2 O 5)composite film is prepared by chemical etching,hydrothermal method and vacuum filtration withgraphite oxide,carbon nanotubes,and vanadium oxytriisopropoxide as raw materials.The composite film material exhibits the structure of a three-dimensional ion diffusion channel and an overall conductive network.The results show that the specific capacity of the composite film is 187 F/g at a current density of 1 A/g in 1 mol/L LiNO 3,and the capacitance retention rate is still 83.4%after 5000 cycles.
作者
侯宝权
于迪
吴萌盟
王辰
江丽丽
HOU Baoquan;YU Di;WU Mengmeng;WANG Chen;JIANG Lili(College of Materials Science and Engineering,Jilin Institute of Chemical Technology,Jilin 132022,China)
出处
《有色金属工程》
CAS
北大核心
2020年第10期29-33,共5页
Nonferrous Metals Engineering
基金
国家自然科学基金资助项目(51702117)
吉林省教育厅科学技术项目(JJKH20180549KJ)。
