| 二氧化钌/活性炭复合电极的制备及性能 |
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| 引用本文： | 甘卫平,刘继宇,师响,刘泓,李祥,马贺然.二氧化钌/活性炭复合电极的制备及性能[J].中南大学学报(自然科学版),2011,42(2). |
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| 作者姓名： | 甘卫平 刘继宇 师响 刘泓 李祥 马贺然 |
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| 作者单位： | 中南大学材料科学与工程学院,湖南长沙,410083 |
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| 基金项目： | 国家高技术研究发展计划("863计划)项目 |
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| 摘 要： | 为研制低成本、高比容超级电容器的关键复合电极材料,采用涂覆热分解法,以RuCl3·2H2O为前躯体,制备二氧化钌/活性炭复合电极材料.借助扫描电镜、附着力测试、循环伏安、恒流充放电和电化学阻抗谱等检测手段,观察复合薄膜电极材料的表面形貌,分析不同涂覆量的二氧化钌/活性炭复合薄膜电极的性能.研究结果表明:二氧化钌/活性炭复合电极材料具有良好的电化学稳定性,涂覆热分解最佳涂覆数为4次,复合薄膜的比表面积为321.4 m2/g,附着力为11.4 MPa;在H2s04溶液浓度为0.5 mol/L、扫描速率20 mV/s条件下,复合电极材料的比电容为422 F/g,内阻为0.33 Ω;经300次充放电后,电容量持续为98.8%.
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| 关 键 词： | 超级电容器 复合电极 活性炭 二氧化钌 |
Preparation and performances of RuO2/AC composite electrode materials |
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| GAN Wei-ping,LIU Ji-yu,SHI Xiang,LIU Hong,LI Xiang,MA He-ran.Preparation and performances of RuO2/AC composite electrode materials[J].Journal of Central South University:Science and Technology,2011,42(2). |
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| Authors: | GAN Wei-ping LIU Ji-yu SHI Xiang LIU Hong LI Xiang MA He-ran |
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| Institution: | GAN Wei-ping,LIU Ji-yu,SHI Xiang,LIU Hong,LI Xiang,MA He-ran (School of Materials Science and Engineering,Central South University,Changsha 410083,China) |
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| Abstract: | To research low-cost,high specific capacitance key composite electrode materials for super-capacitors,ruthenium oxide coated active carbon(RuO2/AC) was prepared by coating and thermal decomposition of ruthenium chloride on AC matrix.The morphology of the composite electrode was investigated by SEM.The performances of RuO2/AC composite membrane electrode at different coating numbers were characterized by adhesion,cyclic voltammetry,constant current charge-discharge and electrochemical impedance spectroscopy ... |
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| Keywords: | super-capacitors composite electrode active carbon ruthenium oxide(RuO2) |
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