NEW PROTON EXCHANGE MEMBRANES (PEM) FOR DIRECT METHANOL FUEL CELLS (DMFC)

机译：用于直接甲醇燃料电池（DMFC）的新质子交换膜（PEM）

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New proton exchange membranes have been prepared by the direct copolymerization of disulfonated dichlorodiphenyl sulfone, dichlorodiphenyl sulfone and appropriate bisphenols. The principal biphenol based system is referred to as BPSH and an analogous system based upon Bisphenol AF is similar except for the introduction of 6 fluorines into the repeat unit. Both copolymer series can be developed into tough, mechanically strong films, which show conductivity appropriate for proton exchange membrane based fuel cells. The permeability to methanol is significantly reduced relative to Nafion, and this enhances the selectivity of the systems. Membrane electrode assemblies (MEAs) have been prepared, which show good performance. In particular, the partially fluorinated 6F based copolymers have excellent performance, which is tentatively attributed to enhanced bonding to the Nafion electrode materials, which likely reduces interfacial resistance. Synthesis and characterization of the materials will be described.

机译：通过二磺化二氯二苯砜，二氯二苯砜和适当的双酚的直接共聚制备了新的质子交换膜。基于双酚的主要体系称为BPSH，基于双酚AF的类似体系相似，不同之处在于将6个氟引入重复单元。两种共聚物系列都可以制成坚韧的，机械强度高的薄膜，这些薄膜显示出适合基于质子交换膜的燃料电池的导电性。相对于Nafion，甲醇的渗透性大大降低，这提高了系统的选择性。已经制备了膜电极组件（MEA），其显示出良好的性能。特别地，部分氟化的基于6F的共聚物具有优异的性能，这暂时归因于与Nafion电极材料的增强的结合，这可能降低了界面电阻。将描述材料的合成和表征。

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来源
《Membrane/Separations Technology Planning Conference; 20031201-20031202; Newton,MA; US》|2003年|P.131-145|共15页
会议地点 Newton MA(US);Newton MA(US)
作者
J.E. McGrath;
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作者单位

Department of Chemistry Inst. for Polymeric Materials and Interfaces Virginia Tech Blacksburg, VA 24061;

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原文格式 PDF
正文语种 eng
中图分类薄膜技术;
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NEW PROTON EXCHANGE MEMBRANES (PEM) FOR DIRECT METHANOL FUEL CELLS (DMFC)

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