Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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CoMn Oxide/Carbon-nanofiber Composite Electrodes for Supercapacitors

코발트망간 산화물/탄소나노섬유 복합전극의 수퍼케폐시터 특성

  • Kim, Yong-Il (Department of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Yoon, Yu-Il (Department of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Ko, Jang-Myoun (Department of Applied Chemistry and Biotechnology, Hanbat National University)
  • 김용일 (한밭대학교 응용화학생명공학부) ;
  • 윤여일 (한밭대학교 응용화학생명공학부) ;
  • 고장면 (한밭대학교 응용화학생명공학부)
  • Published : 2008.08.31
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Abstract

Composite electrodes consisting of $CoMnO_2$ and carbon nanofibers(vapor grown carbon nanofiber, VGCF) with high electrical conducivity($CoMnO_2$/VGCF) were prepared on a porous nickel foam substrate as a current collector and their supercapacitive properties were investigated using cyclic voltammetry in 1 M KOH aqueous solution. The $CoMnO_2$/VGCF electrode exhibited high specific capacitance value of 630 F/g at 5 mV/s and excellent capacitance retention of 95% after $10^4$ cycles, indicating that the used VGCF played the important roles in reducing the interfacial resistance in the composite electrode to improve supercapacitive performance.

Keywords

References

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