화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 봄 (04/23 ~ 04/25, 제주ICC)
권호 14권 1호, p.979
발표분야 에너지/환경
제목 Influence of surface chemical characteristics of activated carbon on performances of EDLC
초록 Electrical double-layer capacitor is a kind of electrochemical energy storage device in which electric charges accumulated as a result of pure electrostatic attraction force and stored on the electrolyte-electrode interface in a form of double layer separated by the electrolyte. Activated carbon with high specific surface area is widely used as the electrode material as electric double-layer capacitance is directly proportional to the accessible surface area of an electrode.
Coconut and coal char based activated carbons with post treatment by different kinds of acid and alkali solution were used as the electrode of double-layer capacitor. In order to control the surface functional groups of activated carbon, heat treatment at different temperature was performed after post treatment. The effect of the surface functional groups on electrochemical performance of the activated carbon electrodes was investigated.
저자 홍익표1, 오경옥2, 김명수2, 박세민1, 이성영1
소속 1포항산업과학(연), 2명지대
키워드 EDLC; activated carbon; functional group
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