NDLI: Influence of KOH activation techniques on pore structure and electrochemical property of carbon electrode materials

Content Provider	Springer Nature Link
Author	Li, Jing Li, Jie Lai, Yan qing Song, Hai sheng Zhang, Zhi an Liu, Ye xiang
Copyright Year	2006
Abstract	Taking the selection of coal-tar pitch as precursor and KOH as activated agent, the activated carbon electrode material was fabricated for supercapacitor. The surface area and the pore structure of activated carbon were analyzed by Nitro adsorption method. The electrochemical properties of the activated carbons were determined using two-electrode capacitors in 6 mol/L KOH aqueous electrolytes. The influences of activated temperature and mass ratio of KOH to C on the pore structure and electrochemical property of porous activated carbon were investigated in detail. The reasons for the changes of pore structure and electrochemical performance of activated carbon prepared under different conditions were also discussed theoretically. The results indicate that the maximum specific capacitance of 240 F/g can be obtained in alkaline medium, and the surface area, the pore structure and the specific capacitance of activated carbon depend on the treatment methods; the capacitance variation of activated carbon cannot be interpreted only by the change of surface area and pore structure, the lattice order and the electrolyte wetting effect of the activated carbon should also be taken into account.
Starting Page	360
Ending Page	366
Page Count	7
File Format	PDF
ISSN	10059784
Journal	Journal of Central South University of Technology
Volume Number	13
Issue Number	4
e-ISSN	19930666
Language	English
Publisher	Central South University of Technology
Publisher Date	2006-01-01
Publisher Place	Changsha
Access Restriction	Subscribed
Subject Keyword	supercapacitor activated carbon chemical activation pore structure specific capacitance Engineering Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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