| 纳米氧化锰电极材料的制备和电容特性研究 |
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| 引用本文： | 张治安,杨邦朝,胡永达,邓梅根,汪斌华. 纳米氧化锰电极材料的制备和电容特性研究[J]. 无机化学学报, 2005, 21(3): 389-393 |
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| 作者姓名： | 张治安 杨邦朝 胡永达 邓梅根 汪斌华 |
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| 作者单位： | 电子科技大学微电子与固体电子学院,成都,610054 |
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| 基金项目： | 厦门信达电子股份有限公司博士后流动站基金资助项目(No.w030319) |
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| 摘 要： | The nano-MnO2 as active electrode material for supercapacitor was synthesized by solid-state reaction between KMnO4 and manganese acetate at room temperature. The products annealed at 100 ℃ and 200 ℃ were characterized by XRD and TEM. The results showed the sample annealed at 100 ℃ was poorly crystallized phase with an average grain size of <20 nm. Electrochemical performances of manganese oxide electrode were investigated by cyclic voltammetry and constant current charge/discharge. The manganese oxide electrode annealed at 100 ℃ in 1 mol·L-1 Na2SO4 aqueous electrolyte exhibited excellent capacitive behavior between -0.2 and +0.8 V (vs SCE). By 5 mA and 10 mA constant current charge/discharge, the nano-MnO2 annealed at 100 ℃ can provide a specific capacitance of 158.5 F·g-1 and 151.2 F·g-1, respectively.
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| 关 键 词： | 超级电容器； 氧化锰； 固相反应； 电容特性 |
| 文章编号： | 1001-4861(2005)03-0389-05 |
| 收稿时间： | 2004-06-28 |
| 修稿时间： | 2004-06-28 |
Preparation and Capacitive Characteristics of Nano-MnO2 |
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| ZHANG Zhi-An,YANG Bang-Chao,HU Yong-D,DENG Mei-Gen and WANG Bin-Hua. Preparation and Capacitive Characteristics of Nano-MnO2[J]. Chinese Journal of Inorganic Chemistry, 2005, 21(3): 389-393 |
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| Authors: | ZHANG Zhi-An YANG Bang-Chao HU Yong-D DENG Mei-Gen WANG Bin-Hua |
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| Affiliation: | College of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054,College of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054,College of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054,College of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054 and College of Microelectronics and Solid State Electronics, University of Electronic Science and Technology of China, Chengdu 610054 |
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| Abstract: | |
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| Keywords: | supercapacitor manganese oxide solid state reaction capacitive characteristics |
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