电源技术2013，Vol.37Issue(6)：997-1000,4.
超级电容器用中空α-MnO2材料的制备及电容性能
Synthesis and capacitive performance of hollow α-MnO2 as supercapacitor electrode material
摘要
Abstract
Hollow α-MnO2 was prepared by low-temperature liquid-state reaction and the microstructure and electrochemical properties were characterized by XRD,SEM,CV,and et al.The results show that the microstructure of the synthesized samples is hollow urchin α-MnO2.The hollow α-MnO2 prepared at KnMnO4-to-Cu molar ratio of 1 ∶ 5 has well electrochemical performance and exhibits the highest specific capacitance,reaching to 288.02 F/g in a 0.5 mol/L Na2SO4 solution at a charge-discharge current density of 65 mA/g,which is higher 18％ than that of hollow γ-MnO2 prepared by a hydrothermal method.The product still remains about 50％ of the capacitance under the charge-discharge current density of 250 mA/g.关键词
超级电容器/电极材料/中空二氧化锰/比容量Key words
supercapacitor/ electrode material/ hollow MnO2/ specific capacitance分类
信息技术与安全科学引用本文复制引用
范瑞娟,陈白珍,陈亚,王佳伟..超级电容器用中空α-MnO2材料的制备及电容性能[J].电源技术,2013,37(6):997-1000,4.基金项目
湖南省自科基金项目(12JJ3014) （12JJ3014）
