| 高能球磨制备Al／MnO2超级电容器材料及其性能 |
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| 引用本文： | 黎阳,郭守柱. 高能球磨制备Al／MnO2超级电容器材料及其性能[J]. 上海第二工业大学学报, 2009, 26(1): 22-27 |
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| 作者姓名： | 黎阳 郭守柱 |
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| 作者单位： | 1. 上海第二工业大学城市建设与环境工程学院,上海,201209
2. 华东师范大学纳米功能材料与器件应用中心,上海,200062 |
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| 基金项目： | 上海第二工业大学校基金，上海市优秀青年教师科研专项基金 |
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| 摘 要： | 采用高能球磨法制备了Al／MnO2超级电容器电极材料；运用X射线衍射和扫描电镜对Al／MnO2进行了物相分析和形貌观察。结果表明，所得球磨粉体为纯MnO2物相，Al的加入未明显改变MnO2衍射图样。以Al／MnO2为超级电容器电极材料进行电化学性能测试，不同含量配比的Al／MnO2电极材料的比电容在初始几个电化学循环中均有明显下降，但其比电容均大于未添加Al的MnO2电极；Al添加量为Al0.05／Mn0.95O2时，电极的电化学性能最好。Al／MnO2电极材料电化学性能提高的原因可能是由于Al的加入改善了Al／MnO2电极体系的导电性能，从而有利于电极氧化还原反应的进行。
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| 关 键 词： | Al/MnO2 球磨 超级电容器 电化学电容器 |
Ball Milling Preparation and Electrochemical Performances of Al/MnO2 Materials for Supercapacitors |
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| LI Yang,GUO Shou-zhu. Ball Milling Preparation and Electrochemical Performances of Al/MnO2 Materials for Supercapacitors[J]. Journal of Shanghai Second Polytechnic University, 2009, 26(1): 22-27 |
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| Authors: | LI Yang GUO Shou-zhu |
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| Affiliation: | 1.School of Urban Development and Environmental Engineering;Shanghai Second Polytechnic University;Shanghai 201209;P.R.China;2.Department of Physics;Center of Functional Nanomaterials and Devices;East China Normal University;Shanghai 200062;P.R.China |
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| Abstract: | Al/MnO2 as electrode materials for supercapacitor was synthesized by high energy ball milling.The morphologies and structures of prepared Al/MnO2 were studied by scanning electron microscopy(SEM) and X-ray diffraction(XRD).It was revealed that as-prepared powders were all MnO2 phase,no diffraction peaks of Al emerged.Electrochemical investigation indicated that Al/MnO2 presented preferable electrochemical performances than pure MnO2,but there were obvious capacitance decline in first several dozens of cycle... |
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| Keywords: | Al/MnO2 |
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