介孔氧化镍薄膜的制备及超级电容器性能研究  

Study on Fabrication and Supercapacitor Performance of Mesoporous NiO Films

作　　者：肖凤[1] 杨飞[2] 

机构地区：[1]重庆师范大学化学学院绿色合成与应用重点实验室,重庆401331 [2]重庆大学化学化工学院,重庆400044

出　　处：《材料导报》2014年第4期32-34,共3页Materials Reports

基　　金：2013年重庆高校创新团队建设计划资助项目(KJTD201309)

摘　　要：以阳极氧化法制备的TiO2纳米管阵列为基底,利用水热法在基底上成功制备出NiO介孔薄膜。并用X射线衍射仪、场发射扫描电镜分析薄膜的晶体结构及形貌。高比表面的介孔结构以及TiO2纳米管阵列基底的定向电子传输途径使该介孔NiO薄膜在充放电电流密度2.5A/g下电容量为918F/g,在充放电电流密度为5A/g下循环2000圈之后容量保持93%,是较为理想的超级电容器材料。NiO mesoporous film was prepared on ordered TiOz nanotubes by hydrothermal method. The crystal structure and morphology of this film were detected by XRD and FESEM. The electrode presented the highest specific capacitance of 918 F/g at a charge and discharge current density of 2.5 A/g, furthermore, at a charge and discharge current density of 5 A/g, capacitance of the electrode retained 93% of their maximum after 2000 cycles. This capacity and cycling stability may be attrihuted to the high specific surface area of mesoporous NiO film and TiO2 nanotubes substrate which can provide oriented electron/ion transport. So it can be a comparatively ideal supercapacitor material.

关 键 词：介孔薄膜 TIO2纳米管 超级电容器 

分 类 号：O646[理学—物理化学]