KIEE International Transactions on Electrophysics and Applications

The Korean Institute of Electrical Engineers (대한전기학회)
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Preparation and Electrochemical Characteristics of CNFs/DAAQ Electrode for Energy Storage

  • Kim Hong-Il (Dept. of Industrial Chemical Engineering, Chungbuk National University) ;
  • Kim Han-Joo (Dept. of Industrial Chemical Engineering, Chungbuk National University) ;
  • Choi Weon-Kyung (Engineering administration of Dankuk University) ;
  • Osaka Testuya (Department of Applied Chemisry, Waseda University) ;
  • Park Soo-Gil (Dept. of Industrial Chemical Engineering, Chunbuk National University)
  • Published : 2005.08.01
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Abstract

A new type of supercapacitor was constructed by using carbon nanofibers (CNFs) and DAAQ (l,5-diaminoanthraquinone) oligomer. DAAQ was deposited on the carbon nanofibers by chemical polymerization with ammonium peroxodisulfate (($NH_4)_2S_2O_8$) as oxidant in the 0.1 M $H_2SO_4$. Polymerization reaction was carried out with constant sonication. From the analysis, it is clear that surface of carbon nanofibers was quite uniformly coated with DAAQ. The performance characteristics of the supercapacitors have been evaluated using Cyclic Voltammetry. CNFs/DAAQ based composite electrode showed relatively good electrochemical behaviors in acidic electrolyte system. CNFs/DAAQ composite electrode showed relatively good capacitance (7 Ah/kg) compared to conventional capacitors in the range of $-0.4\~0.4$.

Keywords

References

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