| 超级电容器用纳米二氧化锰的合成及其电化学性能 |
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| 引用本文： | 马军,郑明森,董全峰. 超级电容器用纳米二氧化锰的合成及其电化学性能[J]. 电化学, 2007, 13(3): 233-237 |
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| 作者姓名： | 马军 郑明森 董全峰 |
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| 作者单位： | 厦门大学化学化工学院化学系,厦门大学化学化工学院化学系,厦门大学化学化工学院化学系 福建厦门361005,福建厦门361005,福建厦门361005 |
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| 基金项目： | 973项目(2002CB211800)，福建省化学电源科技创新平台(2006H0090)资助 |
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| 摘 要： | 应用低温固相法和化学沉淀法制备4种用于电化学电容器的纳米级二氧化锰.由XRD、SEM和循环伏安等表征和测试其物化性能及电容特性.结果表明,该二氧化锰材料的颗粒尺寸约几十nm,在0.1 A.g-1电流密度下放电时产物的比电容最高,可达149F.g-1,二氧化锰的大倍率放电性能与其结构特征直接相关,材料的晶体结构越完整其大倍率放电性能越好.
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| 关 键 词： | 超级电容器 纳米二氧化锰 晶体结构 |
| 文章编号： | 1006-3471（2007）03-0233-05 |
| 收稿时间： | 2007-02-29 |
| 修稿时间： | 2007-05-14 |
The Syntheses and Electrochemical Performance of Nano-MnO2 for Supercapacitor |
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| MA Jun,ZHENG Ming-sen,DONG Quan-feng. The Syntheses and Electrochemical Performance of Nano-MnO2 for Supercapacitor[J]. Electrochemistry, 2007, 13(3): 233-237 |
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| Authors: | MA Jun ZHENG Ming-sen DONG Quan-feng |
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| Abstract: | Nano-manganese dioxide were prepared by two different methods which are low temperature solid reaction and chemical deposition.The products were characterized by XRD,SEM,BET and constant current charge-discharge tests.The result shows that there is a close relationship between specific capacitance and BET surface areas.Meanwhile the specific capacitance was impacted little by the structure of the nano-manganese dioxides.However,the product performance of high rates,was influenced by structure,the higher rate can be obtained with the more perfect crystal structure. |
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| Keywords: | supercapacitor nano-manganese dioxide crystal structure |
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