【摘 要】
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Proton exchange membrane fuel cells (PEMFCs) have attracted considerable attention as new power sources for vehicles and portable devices.Currently,Perfluor
【机 构】
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Korea Research Institute of Chemical Technology,Daejeon,305-600,Korea
【出 处】
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The 6th International Conference on Separation and Technolog
论文部分内容阅读
Proton exchange membrane fuel cells (PEMFCs) have attracted considerable attention as new power sources for vehicles and portable devices.Currently,Perfluorosulfonic acid membranes such as Nation(@) are the current state-of-the-art PEM materials because of their superior chemical and electrochemical stability,high proton conductivity.However,perfluorosulfonic acid membranes have critical drawbacks:high preparation cost,high methanol crossover,poor mechanical stability at devated temperatures(T > 80℃).Hydrocarbon based polymers have been investigated to recover these drawbacks.The other potential materials are partially fluorinated polymers,which are expected to have the advantages between perfluoropolymers and hydrocarbon based polymes.
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