Journal of Hydrogen and New Energy (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Electrochemical Energy Storage of Milled Carbon Nanofiber

탄소나노섬유의 밀링에 따른 전기화학적 에너지 저장 특성

  • Lee, Hye-Min (Applided chemistry engineering, Dpt., School of engineering, Dankook University) ;
  • Jeon, Hyeon (Applided chemistry engineering, Dpt., School of engineering, Dankook University) ;
  • Choi, Weon-Kyung (Grad. School of Applied Chemistry Engineering, Dankook Univ.) ;
  • Cho, Tae-Hwan (Applided chemistry engineering, Dpt., School of engineering, Dankook University)
  • 이혜민 (단국대학교 응용화학공학과) ;
  • 전현 (단국대학교 응용화학공학과) ;
  • 최원경 (단국대학교 공학부) ;
  • 조태환 (단국대학교 응용화학공학과)
  • Received : 2011.07.06
  • Accepted : 2011.08.22
  • Published : 2011.08.30
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Abstract

CNFs had been well addressed due to numerous promising applications in science and technology. Besides the same physicochemical properties of ordinary carbon materials such as active carbons and carbon black, they exhibit specific, e.g., tubular or fibrous structures, a large surface area, high electrical conductivity stability, as well as extremely high mechanical strengh and modulus, which make them a superior material for electrochemical capacitors. In this study, CNFs were pretreated by mechanical milling with different time in mortar and pestle. The milled CNFs were used as active material of electrode whose electrochemical property was tested to find physicochemical characterization variation. CNF electrode milled for 5 min has the highest electric capacitance. XPS spectrum were employed to explore changes in functional group induced from mechanical milling. Crystal size was calculated to analyze change of peak from different milling time by XRD. The CNF milled for 5 min has the largest crystal size and the highest electric capacitance.

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References

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