钴化合物/有序中孔炭复合材料的电容特性  

Capacitive characteristics of cobalt compounds/ordered mesoporous carbon composites

作　　者：徐菁利[1] 赵家昌[1] 唐博合金[1] 郑静[1] 曹俭[1] 孙镭[1] 

机构地区：[1]上海工程技术大学化学化工学院,上海201620

出　　处：《电源技术》2011年第12期1551-1554,共4页Chinese Journal of Power Sources

基　　金：上海市科学技术委员会纳米科技专项项目(0952-nm02500);上海工程技术大学校基金项目(A-2500-10-01006);大学生创新活动计划项目(cx1104018)

摘　　要：采用微湿含浸法和水热法相结合制备了钴化合物/有序中孔炭复合材料,通过XRD、TEM、液氮吸附等温线和电化学性能测试对材料进行表征,研究了水热处理温度对复合材料的晶体结构和电化学性能的影响。研究结果表明,在150℃的较低温度下制得CoNO3OH.H2O/有序中孔炭复合材料,随温度的进一步增加到175℃,所制得的样品为CoNO3OH.H2O和Co3O4混合物/有序中孔炭复合材料,而当温度升到200℃的较高温度时,得到Co3O4/有序中孔炭复合材料。钴化合物填充到有序中孔炭的孔道中形成了主客体结构。在175℃下水热处理可以制备得到比电容达936.31 F/g的CoNO3OH.H2O和Co3O4混合物/有序中孔炭复合材料。Cobalt oxide composites/ordered mesoporous carbon composites were prepared by combining incipient wetness impregnation and hydrothermal method. The samples were characterized by XRD, TEM, N2 adsorption/ desorption isotherms and electrochemical testing. The effect of hydrothermal temperature on the crystal structure and electrochemical performance were investigated. The result shows that CoNO3OH-H2O/ordered mesoporous carbon is obtained at the low temperature of 150 ℃. The mixture of CoNO3OH .H2O and Co3O4/ordered mesoporous carbon composite is prepared when the temperature is increased to 175 ℃ .Co3O4/ordered mesoporous carbon is synthe- sized at the temperature of 200 ℃.The host-guest structure is formed after the cobalt compound is filled into the channel of ordered mesoporous carbon. The mixture of CoNO3OH-H2O and Co3O4/ordered mesoporous carbon composite delivers 936.31 F/g of specific capacitance at the temperature of 175 ℃.

关 键 词：超级电容器 复合材料 电容特性 

分 类 号：TM53[电气工程—电器]