화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2009년 가을 (10/22 ~ 10/23, 일산 KINTEX)
권호 15권 2호, p.1221
발표분야 고분자
제목 Conductivity performance study of cubic structure Bezene-slilica based poly (ether ether ketone) composite membranes
초록 Sulfonated poly(ether ether ketone) (sPEEK)/ mesoporous benzene-silica electrolyte composite membranes were prepared by a solvent casting method. Components was mixed well in N,N-dimethyl acetamide up to 20wt% of mesoporous benzene-silica powder. Sulfonation degress of sPEEK was 65% and ion exchange capacity of mesoporous material was 0.63 meq./g. By SAXS(Small-Angel X-ray Scattering) and TEM, 3-D cubic-structure(Im3m) was conformed. And by Nitrogen adsorption- desorption, BET surface area, total pore volume and average pore diameter was determined. The composite membranes showed higher proton conductivity than the pristine sPEEK membrane and the conductivity increase with the temperature but still lower than that of Nafion. On the other hand, the sPEEK based composite membranes showed lower methanol crossover than that of Nafion.
저자 씨에레이, 김덕준
소속 성균관대
키워드 proton cunductivity; Sulfonated Poly(ether ether ketone); Fuel cell
E-Mail djkim@skku.edu
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