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The performances of gas diffusion electrodes (GDEs) containing Pt/C catalyst (48wt.% and 68wt.%-Pt) and sulfonated poly (arylene ether) (SPAE) ionomer (ion exchange capacity, IEC=1.8 and 2.5meqg −1 ) as a proton-conducting binder (SPAE-GDE) were examined in a PEFC at 80°C and relative humidities (RH) from 60% to 100%. Based on our analyses in Part 1, we have succeeded in improving the cathode...
Gas diffusion electrodes (GDEs) containing Pt/C catalyst and sulfonated poly (arylene ether) (SPAE) ionomer as a proton conducting binder (SPAE–GDE) were prepared. The cathode performances were evaluated in a PEFC at 80°C and relative humidities (RH) from 60 to 100%. The value of the electrochemical active surface area (ECA) of 65m 2 g −1 for the SPAE–GDE, which was measured by cyclic...
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