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  • 제15권3호
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  • Pages.192-197
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  • 2014
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  • 1976-4251(pISSN)
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  • 2233-4998(eISSN)
한국탄소학회 (Korean Carbon Society)
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Preparation of novolac-type phenol-based activated carbon with a hierarchical pore structure and its electric double-layer capacitor performance

  • Lee, Dayoung (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Jung, Jin-Young (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Park, Mi-Seon (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Lee, Young-Seak (Department of Applied Chemistry and Biological Engineering, Chungnam National University)
  • 투고 : 2014.04.21
  • 심사 : 2014.06.02
  • 발행 : 2014.07.31
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초록

A hierarchical pore structured novolac-type phenol based-activated carbon with micropores and mesopores was fabricated. Physical activation using a sacrificial silicon dioxide ($SiO_2$) template and chemical activation using potassium hydroxide (KOH) were employed to prepare these materials. The morphology of the well-developed pore structure was characterized using field-emission scanning electron microscopy. The novolac-type phenol-based activated carbon retained hierarchical pores (micropores and mesopores); it exhibited high Brunauer-Emmett-Teller specific surface areas and hierarchical pore size distributions. The hierarchical pore novolac-type phenol-based activated carbon was used as an electrode in electric double-layer capacitors, and the specific capacitance and the retained capacitance ratio were measured. The specific capacitances and the retained capacitance ratio were enhanced, depending on the $SiO_2$ concentration in the material. This result is attributed to the hierarchical pore structure of the novolac-type phenol-based activated carbon.

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참고문헌

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