Paper Title:
Preparation and Electrochemical Characteristics of Activated Carbon Micro-Spheres for Electric Double Layer Capacitor
  Abstract

Carbon micro-spheres were obtained using β-cyclodextrin as the raw materials via hydrothermal synthesis and carbonization. The product had a perfect shape, smooth surface and narrow pore diameter distribution. The diameters were in the range of 400-700 nm. Then product was activated by ethanol and ammonium bicarbonate at low temperature in the closed system, respectively. The results showed that ammonium bicarbonate had better activation effect than ethanol. Moreover, specific surface area and pore volume of activated carbon micro-spheres reached to 1125 m2 g−1 and 0.485 mL g−1, respectively. As electrode materials of supercapacitors, the specific capacitance were improved from 154 F g−1 to 226 F g−1, increased by 46%.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
94-97
DOI
10.4028/www.scientific.net/AMR.239-242.94
Citation
B. Liu, H. R. Deng, J. H. Ai, J. C. Deng, "Preparation and Electrochemical Characteristics of Activated Carbon Micro-Spheres for Electric Double Layer Capacitor", Advanced Materials Research, Vols. 239-242, pp. 94-97, 2011
Online since
May 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: Zhan Jun Yu, Ying Dai, Wen Chen
Abstract:Co3O4 microspheres were synthesized by hydrothermal-precipitation method using NH3•H2O, H2O2, n-butanol and polyethylene glycol as...
280
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: Fen Ran, Ling Ren Wang, Lei Zhao, Yong Tao Tan, Ling Bin Kong, Long Kang
Chapter 6: Composite Materials
Abstract:Mn3O4/Cr2O3 composite materials were prepared by a chemical coprecipitation method. The...
555