中文摘要：

用醋酸锰和高锰酸钾制备二氧化锰粉末；用氯化钌和氢氧化钠制备水合二氧化钌粉末。以二氧化钌和二氧化锰作为电极材料的活性物质，以活性碳粉末为电极的基础原料制备复合电极，并组装超级电容器单元。用x射线衍射仪和扫描电镜对电极材料进行表征，可得复合电极具有明显的电容特征。在浓度为38％的硫酸电解质溶液中，对复合电极进行电化学性能测试，循环伏安曲线、充放电曲线和交流阻抗特性显示了复合电极材料具有良好的电化学性能。碳，锰复合电极的比容量为128F／g，碳/锰/钌复合电极的比容量为266F/g。当二氧化钌和二氧化锰在电极中质量比各占20％时，更能发挥活性物质的作用，由该电极材料组成的超级电容器具有理想的电容特性。

英文摘要：

MnO2.xH2O powders was prepared by using KMnO4 and Mn（CH3COO）2 as raw materials. And RuO2.xH2O powders was prepared by using RuC13 and NaOH as raw materials. Composite electiodes materials for super-capacitors were also prepared by using RuO2 and MnO2 as active materials, Active carbon as basic materials. The composite electrodes were characterized by X-ray diffraction （XRD） and scanning election microscopy （SEM）, the results showed that the electiodes materials have super-capacitor properties. Good electiochemical performances of composite electiodes were confirmed by cyclic voltammetry and galvano static charge/discharge and ac impedance measurement. The specific capacitance of MnO2/AC could reach 128F/g, the specific capacitance of RuO2/MnO2/AC could reach 266F/g, when the loading amount of RuO2 and MnO2 were 20%, separately, this super-capacitor with RuO2/ MnO2 / AC composite electiodes had an ideal capacitance properties.