| 用二氧化锰制备超级电容器及其电化学性能研究 |
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| 引用本文： | 邢宝岩,焦晨旭,赵建国.用二氧化锰制备超级电容器及其电化学性能研究[J].雁北师范学院学报,2013(1):42-44,57. |
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| 作者姓名： | 邢宝岩 焦晨旭 赵建国 |
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| 作者单位： | [1]中北大学化学系,山西太原030051 [2]山西大同大学炭材料研究所,山西大同037001 |
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| 基金项目： | 教育部新世纪优秀人才支持计划[NCET-11-1033];国家自然科学基金[51072105,21073113];山西省基础研究计划项目[2011011023-2];山西省高等学校中青年拔尖创新人才计划,中国博士后科学基金特别资助项目[201104321] |
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| 摘 要： | 以KMnO4为锰源,在180℃水热条件下反应24 h可控制备了α-,β-,δ-MnO2,采用高分辨扫描电镜、X射线衍射研究了它们的微观形貌和晶型结构,并通过循环伏安、交流阻抗和恒流充放电比较了三者的电化学电容器性能,结果表明,在6 mol/L KOH电解液中δ-MnO2表现出最好的电容性能,当电流密度为1 mA/cm2时,比电容最大,容量高达162.78 F/g。
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| 关 键 词： | 超级电容器 二氧化锰 水热法 |
The Synthesis and Electrochemical Performance of Manganese Oxide for Supercapacitor |
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| Xing Bao-yan,Jiao Chen-xu,Zhao jian-guo.The Synthesis and Electrochemical Performance of Manganese Oxide for Supercapacitor[J].Journal of Yanbei Teachers College,2013(1):42-44,57. |
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| Authors: | Xing Bao-yan Jiao Chen-xu Zhao jian-guo |
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| Institution: | 1.Chemistry Department,North University of China,Taiyuan Shanxi,030051; 2.Institute of Carbon Materials Science,Shanxi Datong University,Datong Shanxi,037009) |
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| Abstract: | Manganese oxides with α-,β-and δ-type structures were controllably synthesized by hydrothermally treating KMnO4 at 180 ℃ for 24h.SEM and XRD were used to research morphology and structure of manganese oxides.The performance of electrochemical capacitors was investigated by cyclic voltammetry,electrochemical impedance spectroscopy,and galvanostatic charge/discharge tests.The results indicate that δ-MnO2 shows the best capacitive behavior in aqueous electrolyte（6mol/L KOH）.When the current density was 1mA/cm2,the specific capacitance was 162.78 F/g. |
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| Keywords: | supercapacitor manganese oxide hydrothermal method |
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