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Korean Chemical Engineering Research,
Vol.45, No.4, 391-395, 2007
Vol.45, No.4, 391-395, 2007
새로운 전극 바인더(sPEEK/Nafion)를 도입한 직접 메탄올 연료전지의 성능 : 바인더 함량의 영향
Performance of Direct Methanol Fuel Cell (DMFC) based on New Electrode Binder (sPEEK/Nafion): Effect of Binder Content
술폰화한 폴리에테르에테르케톤(sPEEK)과 나피온(Nafion) 아이오노머를 혼합한 새로운 전극 바인더를 제조하여 DMFC 용 음극 바인더로서 적용 가능성을 고찰하였다. 새롭게 제조한 혼합 바인더는 높은 수소 이온 전도도와 메탄올 전달 속도 및 낮은 용해도와 우수한 기계적 물성을 나타냈다. 이를 도입한 음극에서 혼합 바인더 함량에 따른 셀 성능을 고찰하였으며, 10 wt% 혼합 바인더를 도입한 음극으로 구성된 셀이 가장 우수한 성능을 나타냈다.
A new electrode binder mixed with sulfonated poly (ether ether ketone) (sPEEK) and Nafion is prepared and investigated as an anode binder for direct methanol fuel cell (DMFC). The mixed binder (95 wt% sPEEK/5 wt% Nafion) shows high proton conductivity and methanol transport rate as well as no dissolution and brittleness. The effect of content as an anode binder on the performance of the cell with the given cathode is investigated. The unit cell with the anode containing 10wt% mixed binder showed the highest cell performance.
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