Preparation of activated carbons from mesophase pitch and their electrochemical properties

被引：0
|
作者：
Yan-qing Lai
Jing Li
Hai-shen Song
Zhi-an Zhang
Jie Li
Ye-xiang Liu
机构：
[1] Central South University,School of Metallurgical Science and Engineering
来源：
Journal of Central South University of Technology | 2007年 / 14卷
关键词：
supercapacitor; activated carbon; mesophase pitch; chemical activation; pore structure; electrochemical properties;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The influences of molar ratio of KOH to C and activated temperature on the pore structure and electrochemical property of porous activated carbon from mesophase pitch activated by KOH were investigated. The surface areas and the pore structures of activated carbons were analyzed by nitrogen adsorption, and the electrochemical properties of the activated carbons were studied using two-electrode capacitors in organic electrolyte. The results indicate that the maximum surface area of 3 190 m2/g is obtained at molar ratio of KOH to C of 5:1, the maximum specific capacitance of 122 F/g is attained at molar ratio of KOH to C of 4:1, and 800 °C is the proper temperature to obtain the maximum surface area and capacitance.
引用
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页码：633 / 637
页数：4
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