화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관)
권호 34권 2호
발표분야 고분자 구조 및 물성
제목 Electro osmotic drag measurement in Fuel cell electrolyte membranes (Nafion andSPEEK)
초록 Fuel cells are promising power sources for portable, stationary, and also electric vehicle application. However they still have some drawbacks, one of them is methanol crossover which leads to lower energy efficiency, therefore it decreases the fuel cell performance. There are 2 reasons that cause methanol crossover from the anode to the cathode in fuel cell: diffusion flow by concentration gradient and a convective flow by electro-osmotic drag. The limit current density was measured to evaluate the effect of electro-osmotic drag on methanol crossover in fuel cell at different temperature.
저자 , 김덕준
소속 성균관대
키워드 dmfc; methanol permeability
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