纳米MnO2的制备及在超大容量电容器中的应用

被引:8
作者
闪星
张密林
董国君
景晓燕
机构
[1] 哈尔滨工程大学化学工程系
[2] 哈尔滨工程大学化学工程系 黑龙江哈尔滨
[3] 黑龙江哈尔滨
基金
黑龙江省自然科学基金;
关键词
纳米MnO2; 超大容量电容器; 导电剂;
D O I
暂无
中图分类号
TM53 [电容器];
学科分类号
080801 ;
摘要
利用KMnO4在碱性条件下氧化MnSO4制得纳米MnO4,用X射线衍射 (XRD)、透射电子显微镜 (TEM )、循环伏安、恒流充放电等测试手段对样品的性能进行研究。结果表明 ,样品部分为纤维状MnO2 ,平均直径约为 40nm ;用这种高电化学活性的纳米MnO2 制成电化学电容器的电极 ,在 0 .5mol/LNa2 SO4溶液中 ,0~ 0 .85V饱和甘汞电极 (SCE)的电位范围内 ,比容量可达 177.5F/g。同时还研究了导电剂对电极性能的影响。
引用
收藏
页码:92 / 94
页数:3
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