Ti/Ru0.4Sn(0.6-x)MnxO2氧化物电极的电容特性

中国有色金属学报, 2016, 26(4): 821-828.

Ti/Ru0.4Sn(0.6-x)MnxO2氧化物电极的电容特性

伊昭宇 ^1, , 贺冲 ^2, , 朱君秋 ^3, , 邵艳群 ^4, , 唐电 ^5,

1.福州大学材料科学与工程学院,福州,350116

2.福州大学材料科学与工程学院,福州,350116

3.厦门理工学院材料科学与工程学院,厦门,361024

4.福州大学材料科学与工程学院,福州,350116

5.福州大学材料科学与工程学院,福州,350116

基金项目: 国家自然科学基金资助项目(11374053) Project(2015J01190)supported by the Natural Science Fund of Fujian Province,China 福建省自然科学基金资助项目(2015J01190)Project(11374053) supported by the National Natural Science Foundation of China

关键词：二氧化锰 , 二氧化锡 , 比电容 , 交流阻抗

Capacitive properties of Ti/Ru0.4Sn(0.6-x)MnxO2 electrodes

Keywords： MnO2 , SnO2 , specific , capacitance

采用热分解法制备Ti/Ru0.4Mn(0.6-x)SnxO2(x=0,0.3,0.6)三元氧化物电极材料.通过扫描电子显微镜(SEM)、X射线衍射(XRD)、循环伏安(CV)、交流阻抗谱(EIS)和恒流充放电分析Ti/Ru0.4Sn(0.6-x)MnxO2电极材料的组织结构和电容性能.结果表明:三元氧化物电极中SnO2的加入能抑制RuO2表面析出,且有利于形成Ru-Mn-Sn-O固溶体氧化物;而MnO2的加入可以降低氧化钌的结晶度.三组元相互配合降低离子扩散阻力,提高活性材料的利用率,从而提高Ti/Ru0.4Mn(0.6-x)SnxO2电极材料的电荷存储能力.Ti/Ru0.4Mn0.3Sn0.3O2三元电极的比电容可达682 F/g,约为Ti/RuO2-SnO2和Ti/RuO2-MnO2二元氧化物电极的2～3倍.

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