화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.20, No.5, 3474-3479, September, 2014
DOI10.1016/j.jiec.2013.12.037  Export Citation
Structure and electrochemical properties of electrospun carbon fiber composites containing graphene
Bo-Hye Kim†, and Kap Seung Yang1
  • Division of Science Education, Daegu University, Gyeongbuk 712-714, Republic of Korea
  • 1Department of Polymer & Fiber System Engineering and Alan G. MacDiarmid Energy Research Institute, Chonnam National University, 300 Yongbong-dong, Gwangju, Republic of Korea
E-mail:
Electrically conducting carbon nanofiber (CNF) composite mats are prepared by electrospinning blended solutions of graphene oxide and polyacrylonitrile (PAN) in N,N-dimethylformamide (DMF), and their electrochemical properties are investigated as electrodes of supercapacitors. A graphene oxide concentration of 5 wt.% in a PAN polymer solution offers a large specific surface area and good conductivity after a carbonization process at 1000 ℃. The supercapacitor electrode prepared with 5 wt.% graphene shows high specific capacitance, 146.62 Fg-1, and high energy density, 14.83-19.44 W h kg-1, at power densities ranging from 400 to 20,000 W kg-1 in a 6 M KOH aqueous solution.
Keywords:Graphene;Electrospinning;Carbon nanofiber composite;Electrochemical capacitor
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