掺锰活性炭的制备及其电化学性能

新型炭材料, 2008, 23(3): 269-274.

掺锰活性炭的制备及其电化学性能

李兰廷 ^1, , 郝丽娜 ^2, , 张军 ^3, , 王广昌 ^4, , 解强 ^5,

1.中国矿业大学,北京,化学与环境工程学院,北京,100083

2.中国矿业大学,北京,化学与环境工程学院,北京,100083

3.中国矿业大学,北京,化学与环境工程学院,北京,100083

4.防化研究院,北京,100083

5.中国矿业大学,北京,化学与环境工程学院,北京,100083

基金项目: 教育部高等学校博士学科点专项科研基金(20060290006)

关键词：活性炭 , MnO2 , 催化 , 电化学性能

Preparation and performance of activated carbon doped with manganese oxide as an electrode for electrochemical capacitors

分别采用催化法和物理法制得含锰氧化物的中孔活性炭(AC-Mn)和普通活性炭(AC),表征了活性炭的孔容、孔径分布、碘值和亚甲兰值等主要结构、性能指标,并对以这两种活性炭为原料制得的电极进行循环伏安、定电流充放电和交流阻抗测定.结果表明:AC-Mn的收率和碘值分别比AC降低了28.9%和12.4%,但业甲兰吸附值提高了19.8%.AC-Mn的中孔率显著提高,其中3.4nm-4.2nm的中孔增长率最大.AC-Mn电极比电容达93.8F/g.比末负载金属Mn的AC电极高近140%,显示出相对较高的能量密度和良好的准电容特性.

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掺锰活性炭的制备及其电化学性能

Preparation and performance of activated carbon doped with manganese oxide as an electrode for electrochemical capacitors

参考文献