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Received July 19, 2013
Accepted August 16, 2013
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고분자전해질 연료전지용 Poly(arylene ether sulfone) 막의 특성

Characteristics of Poly(arylene ether sulfone) Membrane for Proton Exchange Membrane Fuel Cells

순천대학교 화학공학과, 540-742 전남 순천시 매곡동 315 1코오롱인더스트(주) Eco연구소 중앙기술원, 446-797 경기도 용인시 기흥구 마북동 207-2 2(주)CNLEnergy, 540-742 전남 순천시 매곡동 315
Department of Chemical Engineering, Sunchon National University, 315 Maegok-dong, Suncheon-si, Chonnam 540-742, Korea 1Kolon Research Institute, 207-2 Mabuk-dong, Giheung-gu, Youngin-si, Gyeonggi 446-797, Korea 2CNL Energy Co, 315 Maegok-dong, Suncheon-si, Chonnam 540-742, Korea
parkkp@sunchon.ac.kr
Korean Chemical Engineering Research, October 2013, 51(5), 556-560(5), 10.9713/kcer.2013.51.5.556 Epub 1 October 2013
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Abstract

최근에 저가의 고분자전해질 연료전지(Proton Exchange Membrane Fuel Cells, PEMFC)용 비불소계 전해질 막 연구개발이 활발히 진행되고 있다. 본 연구에서는 PEMFC 운전 조건에서 Poly(arylene ether sulfone)(PAES) 막과 불소계막의 특성을 비교하였다. I-V 분극곡선, 수소투과도, 전기화학적 표면적, 막저항 및 부하 전달 저항 등을 측정·분석했다. PAES 막은 상대습도 100%에서는 불소계 막과 비슷한 성능을 보였으나 낮은 상대습도에서 이온전도도가 낮아 성능감소가 컸다.
Recently, there are many efforts focused on development of more economical non-fluorinated membranes for use in PEMFCs (Proton Exchange Membrane Fuel Cells). In this study, characteristics of poly(arylene ether sulfone)(PAES) were compared with fluorinated membrane at PEMFC operation condition. I-V polarization curve, hydrogen crossover, electrochemical surface area, membrane resistance and charge transfer resistance were measured. PAES_x000D_ membrane showed similar performance compared with fluorinated membrane at 100% relative humidity, but the performance of PAES membrane decreased largely due to low ionic conductivity at low relative humidity.

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