Membrane electrode assemblies perfluorinated polymer

In experiments, we used an ion-exchange membrane made of MF-4SK (Nafion-type) perfluorinated polymer with functional sulfo-groups for preparation of membrane-electrode assemblies (MEAs). The membrane thickness was 130 Xm, the exchange capacity was 0.86 mg-equiv/g, the catalyst was 20 wt % Pt on a hydrophobic carbon carrier, the catalyst loading at the anode and cathode was 0.35 mg/cm. ... 

Polymer Electrolyte Fuel Cells, Membrane-Electrode Assemblies > Polymer Electrolyte Fuel Cells, Perfluorinated Membranes... 

Abstract The world s first highly durable perfluorinated polymer-based membrane electrode assembly (MEA) for polymer electrolyte membrane fuel cells, under conditions of high temperature and low humidity, has been developed. The newly developed MEA, which is composed of a new perfluorinated polymer composite membrane, reduces the degradation rate to 1/lOOth to l/l,000th of that of the conventional MEA. The new perfluorinated polymer composite MEA can be operated for more than 6,000h at 120°C and 50% relative humidity. 

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