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Effect of crystallinity on the electrochemical properties of carbon black electrodes
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  • Journal title : Carbon letters
  • Volume 12, Issue 4,  2011, pp.252-255
  • Publisher : Korean Carbon Society
  • DOI : 10.5714/CL.2011.12.4.252
 Title & Authors
Effect of crystallinity on the electrochemical properties of carbon black electrodes
Yoo, Hye-Min; Heo, Gun-Young; Park, Soo-Jin;
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Carbon-based electric double-layer capacitors are being evaluated as potential energy-storage devices in an expanding number of applications. In this study, samples of carbon black (CB) treated at different temperatures ranging from to were used as electrodes to improve the efficiency of a capacitor. The surface properties of the heat-treated CB samples were characterized by X-ray photoelectron spectroscopy and X-ray diffraction. The effect of the heat-treatment temperature on the electrochemical behaviors was investigated by cyclic voltammetry and in galvanostatic charge-discharge experiments. The experimental results showed that the crystallinity of the CBs increased as the heat-treatment temperature increased. In addition, the specific capacitance of the CBs was found to increase with the increase in the heat-treatment temperature. The maximum specific capacitance was 165 for the CB sample treated at .
carbon black;efficiency of capacitor;heat-treatment temperature;electrochemical behaviors;crystallinity;
 Cited by
KOH 활성화 효과에 의한 흑연나노섬유의 전기화학적 거동,유혜민;민병각;이규환;변준형;박수진;

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