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염화아연에 의해 활성화된 폴리아크릴로나이트릴계 다공성 탄소나노섬유의 제조 및 특성
이혜민 ( Hye Min Lee ),배경민 ( Kyong Min Bae ),강효랑 ( Hyo Rang Kang ),안계혁 ( Kay Hyeok An ),김홍건 ( Hong Gun Kim ),김병주 ( Byung Joo Kim ) 한국공업화학회 2013 공업화학 Vol.24 No.4
The effects of zinc chloride addition on pore development of porous carbon nanofibers prepared by polyacrylonitrile (PAN)/N, N`-dimethylformamide (DMF) (10 wt%) electrospinning were investigated. The change of morphological and structural modification by zinc chloride activation was investigated by a scanning electron microscopy (SEM) analysis. N2 adsorption isotherm characteristics at 77 K were confirmed by Brunauer-Emmett-Teller (BET) and Horvath-Kawazoe (H-K) equations, and the curves showed the Type I mode in the International Union of Pore and Applied Chemistry (IUPAC) classification, indicating that lots of micropores exist in the sample. In addition, specific surface areas and total pore volumes of porous carbons prepared by the zinc chloride activation were determined as 600∼980 m 2 /g and 0.24∼0.40 cm 3 /g, respectively. As experimental results, many holes or demolished structures were found on the fiber surfaces after the zinc chloride activation as confirmed by a SEM analysis. It was also observed that various pore sizes were found to be depended on the adding content of zinc chloride in PAN/DMF solution in this system.