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논문 기본 정보

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동향자료
저자정보
Lee, Hye-Min (R&D Division, Korea Institute of Carbon Convergence Technology) Kim, Hong-Gun (Department of Carbon Fusion Engineering, Jeonju University) An, Kay-Hyeok (R&D Division, Korea Institute of Carbon Convergence Technology) Kim, Byung-Joo (R&D Division, Korea Institute of Carbon Convergence Technology)
저널정보
한국탄소학회 Carbon letters Carbon letters 제15권 제1호
발행연도
2014.1
수록면
71 - 76 (6page)

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Activated carbon nanofibers (ACNF) were prepared from polyacrylonitrile (PAN)-based nanofibers using $CO_2$ activation methods with varying activation process times. The surface and structural characteristics of the ACNF were observed by scanning electron microscopy and X-ray diffraction, respectively. $N_2$ adsorption isotherm characteristics at 77 K were confirmed by Brunauer-Emmett-Teller and Dubinin-Radushkevich equations. As experimental results, many holes or cavernous structures were found on the fiber surfaces after the $CO_2$ activation as confirmed by scanning electron microscopy analysis. Specific surface areas and pore volumes of the prepared ACNFs were enhanced within a range of 10 to 30 min of activation times. Performance of the porous PAN-based nanofibers as an electrode for electrical double layer capacitors was evaluated in terms of the activation conditions.

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