| 100℃ 이상에서 작동하는 고분자 전해질형 연료전지용 나피온/Mordenite 복합체 막의 새로운 제조 방법 |
| 곽상희, 양태현1, 김창수1, 윤기현 |
연세대학교 세리믹공학과
1한국에너지기술연구원 연료전지연구센터 |
| A New Preparation Method of Nafion/Mordenite Composite Membrane for Polymer Electrolyte Membrane Fuel Cell above 100℃ Operation |
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| ABSTRACT |
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The preparation method for composite membranes of high temperature operation above 10$0^{circ}C$ for Polymer Electrolyte Membrane Fuel Cells (PEMFCs ) was presented, using perfluorosulfonylfluoride Nafion resin and mordenite, in addition to the physical properties, proton conductivity and single cells performance for it. The composite membranes were fabricated via melting of Nafion resin with various mordenite content. As the increase of mordenite content, at high temperature range, proton conductivity of the composite membrane increased due to the late dehydration rate of existent water in the mordenite. Also, from the result of the current-voltage relationship for single cells under 13$0^{circ}C$ operation condition, the composite membrane cell with l0 wt% mordenite content showed better performance than that of the others over the entire current density range. This result indicated that the existent water in the composite membrane with l0 wt% mordenite content was higher than that with the others, thereby maintains its conductivity. Based upon the results of experiments, therefore, a Nafion/mordenite composite membrane prepared by this work is thought to be a satisfactory polymer electrolyte membrane for PEMFC operation above 10$0^{circ}C$. |
| Key words:
PEMFC, Nafion/Mordenite composite membrane, Proton conductivity, High temperature operation |
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