Journal of Industrial and Engineering Chemistry

  • Volume 35
  • /
  • Pages.341-346
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  • 2016
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  • 1226-086X(pISSN)
  • /
  • 1876-794X(eISSN)
The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Pore size distribution control of pitch-based activated carbon for improvement of electrochemical property

  • Cho, Eun-sam (C-Industry Incubation Center, Korea Research Institute of Chemical Technology (KRICT)) ;
  • Bai, Byong Chol (C-Industry Incubation Center, Korea Research Institute of Chemical Technology (KRICT)) ;
  • Im, Ji Sun (C-Industry Incubation Center, Korea Research Institute of Chemical Technology (KRICT)) ;
  • Lee, Chul Wee (C-Industry Incubation Center, Korea Research Institute of Chemical Technology (KRICT)) ;
  • Kim, Seok (Department of Chemical and Biomolecular Engineering, Pusan National University)
  • Received : 2015.10.12
  • Accepted : 2016.01.12
  • Published : 2016.03.25
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Abstract

Activated carbon has been prepared using coal tar pitch as a precursor with a simple NaOH activation process. The effect of the activation on the porosity and the specific surface area is characterized by nitrogen adsorption-desorption isotherms. The highest specific surface area of $1409.7m^2g^{-1}$ is obtained with a NaOH to pitch ratio of 6. Its specific capacitance is $287.43F\;g^{-1}$ at the scan rate $50mV\;s^{-1}$, $197.78F\;g^{-1}$ at the current density $1A\;g^{-1}$, and it has outstanding energy density of $16.34Wh\;kg^{-1}$. Thus, pitch-based AC is a promising material for various energy storage devices.

Keywords

Acknowledgement

Grant : BK21플러스

Supported by : 부산대학교

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