| 氧化锰及炭/氧化锰复合材料的电化学电容性能 |
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| 引用本文： | 王晶日,田颖.氧化锰及炭/氧化锰复合材料的电化学电容性能[J].大连铁道学院学报,2011(1):69-72,78. |
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| 作者姓名： | 王晶日 田颖 |
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| 作者单位： | 大连晟世环境工程有限公司;大连交通大学环境与化学工程学院; |
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| 摘 要： | 以Mn（Ac）2为锰源,以K2S2O8为氧化剂,采用液相氧化法制备了氧化锰材料和炭/氧化锰复合材料.采用循环伏安、交流阻抗和恒流充放电方法对两种电极材料的电化学电容性能进了表征.结果表明：由于炭的担载,复合材料的电化学电容性能优于纯氧化锰.氧化锰对称型电容器的比电容要远远低于炭/氧化锰的比电容,后者是前者的7~12倍.而氧化锰对称型电容器的内阻要远远高于炭/氧化锰的内阻,前者是后者的4.4~4.5倍.
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| 关 键 词： | 超级电容器 氧化锰 炭/氧化锰复合材料 |
Electrochemical Supercapacity of Manganese Oxide and Carbon/Manganese Oxide Composite |
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| WANG Jing-ri,TIAN Ying.Electrochemical Supercapacity of Manganese Oxide and Carbon/Manganese Oxide Composite[J].Journal of Dalian Railway Institute,2011(1):69-72,78. |
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| Authors: | WANG Jing-ri TIAN Ying |
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| Institution: | WANG Jing-ri1,TIAN Ying2(1.Dalian Shengshi Environmental Engineering Co.Ltd.,Dalian 116600,China,2.School of Environmental and Chemical Engineering,Dalian Jiaotong University,Dalian 116028,China) |
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| Abstract: | Manganese oxide and carbon/manganese oxide composite were prepared by liquid oxidation method with Mn(Ac)2 as manganese source and K2S2O8 as oxidizer.The electrochemical capacitance performance of the supercapacitor was tested by cyclic voltammetry,galvanostatic charge-discharge and impetance spectroscopy.The results indicate that carbon-loading manganese composite shows excellent capacitive behavior compared with pure manganese oxide.The calculated results demonstrates that the specific capacitance of the ... |
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| Keywords: | supercapacitor manganese oxide carbon/manganese oxide composite |
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