NiO制备工艺对超电容器比电容的影响  

Effect of NiO preparing process on the specific capacitance for super-capacitor

作　　者：李胜[1] 丁士华[1] 宋天秀[1] 梁逵[2] 

机构地区：[1]西华大学材料科学与工程学院,四川成都610039 [2]湖南大学材料科学与工程学院,湖南长沙410082

出　　处：《电子元件与材料》2007年第12期36-38,共3页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(50307009);四川省教育厅科技基金资助项目(2006C025);西华大学人才基金资助项目(R0620109)

摘　　要：以硝酸镍为原料,采用sol-gel法制备Ni(OH)2,在不同温度下,用真空烧结炉和管式电阻炉对其热处理后得到NiO,与活性炭电极组成非对称超级电容器研究了NiO制备工艺对超电容器比电容影响。结果表明:Ni(OH)2经真空烧结炉处理所得NiO的比电容均高于管式电阻炉处理,在260℃保温时间为1 h真空度为0.5 Pa时比电容达最大481.15 F/g。Ni（NO3）2 were used as raw material to prepare Ni（OH）2 by sol-gel method. At different temperature obtained Ni（OH）2 were heat-treated with vacuum sintering oven and tube-type resistor-oven. The unsymmetrical super-capacitor consists of NiO and actived carbon. The contrasted research of the two technologies＇ influence about specific capacitance in condensers made clear that, Ni（OH）2 taken an vacuum-treating process to prepare NiO would have higher specific capacitance than those were treated with tube-type resistor-oven. So, adopting the vacuum-treating to prepare NiO is an effective way to improve the electric capacity. On the condition of 260 ℃, 1 h heating time and 0.5 Pa, vacuum-treating process to prepare NiO have the highest specific capacitance（481.15 F/g）.

关 键 词：电子技术 超级电容器 真空处理 一氧化镍 比电容 热处理温度 保温时间 

分 类 号：TM53[电气工程—电器]