Preparation of activated carbons from mesophase pitch and their electrochemical properties

被引：7
|
作者：
Lai Yan-qing [1 ]
Li Jing [1 ]
Song Hai-shen [1 ]
Zhang Zhi-an [1 ]
Li Jie [1 ]
Liu Ye-xiang [1 ]
机构：
[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China
来源：
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY | 2007年 / 14卷 / 05期
关键词：
supercapacitor; activated carbon; mesophase pitch; chemical activation; pore structure; electrochemical properties;
D O I：
10.1007/s11771-007-0121-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
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 190 m(2)/g using two-electrode capacitors in organic electrolyte. The results indicate that the maximum surface area of 3 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 degrees C is the proper temperature to obtain the maximum surface area and capacitance.
引用
收藏
页码：633 / 637
页数：5
相关论文
共 50 条
  • [1] Preparation of activated carbons from mesophase pitch and their electrochemical properties
    Yan-qing Lai
    Jing Li
    Hai-shen Song
    Zhi-an Zhang
    Jie Li
    Ye-xiang Liu
    Journal of Central South University of Technology, 2007, 14 : 633 - 637
  • [2] Preparation of activated carbons from mesophase pitch and their electrochemical properties
    赖延清
    李晶
    宋海申
    张治安
    李劼
    刘业翔
    Journal of Central South University of Technology, 2007, (05) : 633 - 637
  • [3] The electrochemical properties of templated and activated mesoporous carbons produced from coal pitch
    Zhou Ying
    Song Xiao-na
    Shu Cheng
    Qiu Jie-shan
    NEW CARBON MATERIALS, 2011, 26 (03) : 187 - 191
  • [4] The electrochemical properties of templated and activated mesoporous carbons produced from coal pitch
    Zhou, Ying
    Song, Xiao-Na
    Shu, Cheng
    Qiu, Jie-Shan
    Xinxing Tan Cailiao/New Carbon Materials, 2011, 26 (03): : 187 - 191
  • [5] Preparation of pitch-based activated carbons
    Wang Yun-long
    Zhang Sheng-wan
    Du Wen
    Wang Wei
    NEW CARBON MATERIALS, 2006, 21 (04) : 369 - 373
  • [6] The effect of the microstructure of mesophase-pitch-based activated carbons on their electrochemical performance for electric double layer capacitors
    Li, Bao-Hua
    Wang, Guan
    Zhai, Deng-Yun
    Du, Hong-Da
    Kang, Fei-Yu
    Xinxing Tan Cailiao/New Carbon Materials, 2011, 26 (03): : 192 - 196
  • [7] Preparation of pitch-based activated carbons
    School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
    Xinxing Tan Cailiao, 2006, 4 (369-373):
  • [8] The effect of the microstructure of mesophase-pitch-based activated carbons on their electrochemical performance for electric double layer capacitors
    Li Bao-hua
    Wang Guan
    Zhai Deng-yun
    Du Hong-da
    Kang Fei-yu
    NEW CARBON MATERIALS, 2011, 26 (03) : 192 - 196
  • [9] Preparation of mesophase pitch based mesoporous carbons using an imprinting method
    Liu Ying
    Zhan Liang
    Zhang Rui
    Qiao Wen-ming
    Liang Xiao-yi
    Ling Li-cheng
    NEW CARBON MATERIALS, 2007, 22 (03) : 259 - 263
  • [10] Preparation of mesophase-pitch-based activated carbons for electric double layer capacitors with high energy density
    Zhai, Dengyun
    Li, Baohua
    Kang, Feiyu
    Du, Hongda
    Xu, Chenjun
    MICROPOROUS AND MESOPOROUS MATERIALS, 2010, 130 (1-3) : 224 - 228
12345