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Electrochemical Properties of EDLC Electrodes Prepared by Acid and Heat Treatment of Commercial Activated Carbons
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  • Journal title : Carbon letters
  • Volume 9, Issue 2,  2008, pp.137-144
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2008.9.2.137
 Title & Authors
Electrochemical Properties of EDLC Electrodes Prepared by Acid and Heat Treatment of Commercial Activated Carbons
Wu, Jin-Gyu; Hong, Ik-Pyo; Park, Sei-Min; Lee, Seong-Young; Kim, Myung-Soo;
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 Abstract
The commercial activated carbons are typically prepared by activation from coconut shell char or coal char containing lots of inorganic impurities. They also have pore structure and pore size distribution depending on nanostructure of precursor materials. In this study, two types of commercial activated carbons were applied for EDLC electrode by removing impurities with acid treatments, and controlling pore size distribution and contents of functional group with heat treatment. The effect of the surface functional groups on electrochemical performance of the activated carbon electrodes was investigated. The initial gravimetric and volumetric capacitance of coconut based activated carbon electrode which was acid treated by and then heat treated at were 90 F/g and 42 F/cc respectively showing 94% of charge-discharge efficiency. Such a good electrochemical performance can be possibly applied to the medium capacitance of EDLC.
 Keywords
EDLC electrode;activated carbon;acid treatment;heat treatment;functional group;electrochemical properties;
 Language
Korean
 Cited by
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열처리 온도에 의한 구조 결정성이 탄소섬유의 전자파 차폐 성능에 미치는 영향,김종구;정철호;이영석;

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