金属Cu的负载方法对活性炭电极电化学性能的影响  

Effect of Cu Loading Methods on Electrochemical Characteristics of Cu-activated Carbon Composite Electrodes

作　　者：孟庆函[1] 张睿[1] 李开喜[1] 吕春祥[1] 凌立成[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室,太原030001

出　　处：《无机材料学报》2003年第5期1027-1032,共6页Journal of Inorganic Materials

基　　金：中国科学院院长青年创新基金;山西省青年基金(20011026)

摘　　要：采用浸渍法和掺杂法分别在活性炭中负载金属Cu,初步电化学性能测试表明,活性炭负载金属Cu可以提高活性炭电极的放电容量,但不同负载方法对其循环性能造成较大的影响.通过电镜照片和XRD等手段对金属在活性炭上的负载状态进行分析比较,结合电极的充放电性能,发现在活性炭中均匀掺杂金属Cu,可以提高电容器的放电容量,且电化学性能稳定.Cu-activated carbon composite electrodes were prepared by the impregnation method and the mixing method. The porous structures and electrochemical double-layer capacitance of activated carbons loaded with metal Cu were investigated by using nitrogen gas adsorption and constant current cycling (CCC) methods. The results show that activated carbon loaded with metal Cu can improve the discharge capacitance of the electrodes, however, the different loading methods will lead to the varied influences on the cycle characterization of the electrodes. SEM, TEM and XRD technologies show that the stable electrochemical characterization obtained from the activated carbon mixed metal Cu electrode mainly depends on the metal particles dispersed homogeneously in all parts of the activated carbon.

关 键 词：双电层电容器 负载 放电容量 

分 类 号：TM53[电气工程—电器]