超级电容器用纳米二氧化锰的合成及其电化学性能

电化学（中英文） ›› 2007, Vol. 13 ›› Issue (3): 233-237.

• 研究论文 • 下一篇

超级电容器用纳米二氧化锰的合成及其电化学性能

马军;郑明森;董全峰;

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

收稿日期:2007-08-28 修回日期:2007-08-28 出版日期:2007-08-28 发布日期:2007-08-28

The Syntheses and Electrochemical Performance of Nano-MnO_2 for Supercapacitor

MA Jun,ZHENG Ming-sen,DONG Quan-feng*

(Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China

Received:2007-08-28 Revised:2007-08-28 Published:2007-08-28 Online:2007-08-28

摘要/Abstract

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.

关键词: 超级电容器, 纳米二氧化锰, 晶体结构

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.

Key words: supercapacitor, nano-manganese dioxide, crystal structure

中图分类号:

TM53

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（中英文）, 2007, 13(3): 233-237.

MA Jun,ZHENG Ming-sen,DONG Quan-feng*. The Syntheses and Electrochemical Performance of Nano-MnO_2 for Supercapacitor[J]. Journal of Electrochemistry, 2007, 13(3): 233-237.

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链接本文: https://electrochem.xmu.edu.cn/CN/

https://electrochem.xmu.edu.cn/CN/Y2007/V13/I3/233

参考文献

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超级电容器用纳米二氧化锰的合成及其电化学性能

The Syntheses and Electrochemical Performance of Nano-MnO_2 for Supercapacitor

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