화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터)
권호 16권 2호, p.1802
발표분야 에너지
제목 Thermally Stable Nafion-Impregnated Electrospun Poly(ether sulfone) Composite Membrane for Polymer Electrolyte Membrane Fuel Cells
초록 In this study, we manufactured the membrane using the Poly(ether sulfone)(PES) by electrospinning method. Electrospun membrane is prior to have homogeneous structure compared to the conventional membrane prepared by casting. Moreover, it has relatively high porosity and surface area to control the high proton conductivity. The composite membrane has been prepared by impregnating of Nafion into the pores of electrospun PES membrane. PES has excellent electrical property as well as thermal stability. Furthermore polymer composed membrane with proton conducting materials such as Nafion shows not only good proton conductivity but also fine mechanical property. We confirmed that electrospun PES membrane had higher thermal stability than Nafion 212 membrane by thermogravimetric analysis(TGA). Impregnated Nafion in the pores of the electrospun PES membrane was characterized by scanning electron microscopy(SEM). The cell performance and conductivity of composite membranes consisted of PES and Nafion were measured at different temperatures. The AC impedance data shows the hydrogen ionic conductivity of 10-2S/cm below 120℃.
저자 황형권, 이찬민, 박상선, 설용건
소속 연세대
키워드 PEMFC; Polymer Electrolyte Membrane; Electrospinning
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