Paper Title:
Direct Preparation of Activated Carbon from Coal and its Electrochemical Properties for Electric Double Layer Capacitor
  Abstract

Direct preparation of activated carbon (AC) from coal was reported by microwave heating with potassium hydroxide as activation agent. Electrochemical properties of AC electrodes were investigated by cyclic voltammetry, constant current charge–discharge. The results show that functional groups on AC include –C=O, –O–H and –C–O. The micropore volume of AC from different coal totals 48.5–95.6%. The total pore volume of AC from different coal passes through a maximum with the decrease of volatile mater content in coal. The specific surface area and total pore volume of AC from Qing ting coal reach 1874 m2 g-1 and 1.00 cm3 g-1, respectively. The specific capacitance and energy density of AC from higher coal rank is usually bigger than that of AC from lower coal rank.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
1253-1257
DOI
10.4028/www.scientific.net/AMR.197-198.1253
Citation
M. D. Zheng, X. Y. Zhang, R. C. Li, M. B. Wu, Y. J. Geng, X. J. He, "Direct Preparation of Activated Carbon from Coal and its Electrochemical Properties for Electric Double Layer Capacitor", Advanced Materials Research, Vols. 197-198, pp. 1253-1257, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xue Jun Zhang, Hai Yan Li, Yan Hong Tian
Abstract:Activated carbon fibers(ACFs) were prepared from general pitch-based carbon fiber by steam activation and catalytic activation method,...
510
Authors: Yan Hong Tian, Bo Rong Wu, Ding Wen Mao
Abstract:Activated carbon (AC)/polyaniline (PANI) composite electrode materials were synthesized in this article. The effect of preparation such as...
1582
Authors: Xiao Jun He, Ting Wang, Ru Chun Li, Ming Dong Zheng, Xiao Yong Zhang
Abstract:Activated carbons (ACs) were prepared by microwave−assisted heating of bituminous coal with KOH as activation agent in different gas media...
1230
Authors: Yan Hong Sun, Jia Chang Zhao, Hong Hua Zhou, Bo He Jin Tang, Yu Qing Gu, Ao Min Tang, Chen Min Liao, Jing Li Xu
Abstract:Composite electrode materials for supercapacitor were prepared by a combination of incipient wetness impregnation and hydrothermal method in...
1010
Authors: Guang Xu Huang, Bao Lin Xing, Chuan Xiang Zhang, Lun Jian Chen
Chapter 4: Material Engineering, Energy Science and Ecological Resources
Abstract:Three kinds of activated carbons were prepared from Taixi anthracite by NaOH activation. As-obtained activated carbons were adopted as...
488