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Micro-Structural and Electrochemical Properties of Activated Carbon Synthesized from Natural Bamboo

천연 대나무로부터 합성된 활성 탄소의 미세구조 및 전기화학적 특성

  • YANG, DONG-CHEOL (Department of Materials Science and Engineering, Chonnam National University) ;
  • KIM, SU-WON (Department of Materials Science and Engineering, Chonnam National University) ;
  • CHOURASHIYA, M.G. (Department of Materials Science and Engineering, Chonnam National University) ;
  • PARK, CHOONG-NYEON (Department of Materials Science and Engineering, Chonnam National University) ;
  • PARK, CHAN-JIN (Department of Materials Science and Engineering, Chonnam National University)
  • 양동철 (전남대학교 신소재공학과) ;
  • 김수원 (전남대학교 신소재공학과) ;
  • ;
  • 박충년 (전남대학교 신소재공학과) ;
  • 박찬진 (전남대학교 신소재공학과)
  • Received : 2019.08.02
  • Accepted : 2019.10.31
  • Published : 2019.10.31

Abstract

Activated carbon was synthesized from bamboo charcoal by KOH activation at various temperatures for electrochemical double layer capacitor applications. The micro-structural and surface properties of all the samples were characterized by X-ray diffraction, scanning electron microscopy and N2 adsorption/desorption isotherm method. The electrochemical properties of the activated bamboo charcoal were examined by cyclic voltammetry in the potential window of -1.0 to 0.2 V in 6 M KOH electrolyte at different scan rates. An electrode made from the sample activated with 7.5 M KOH and heat treated at $750^{\circ}C$ for 3 h gave a maximum capacitance of 553 F/g at 1 mV/s and 450 F/g at 10mV/s.

Keywords

Acknowledgement

Supported by : Chonnam National University

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