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The effect of the operating conditions, e.g., load, temperature, relative humidity (RH), and the MEA's aging condition on the pH of the water drained out from the cathode and anode sides of a H 2 /air PEM fuel cell was studied. Also the effect of the pollutants’ existence in natural air on the measured pH and the performance of the fuel cell was investigated. pH values as low as 1 were measured...
A commercial Nafion 112 membrane loaded with the catalysts and catalysts’ support in a segmented way was used for a H 2 /air PEM fuel cell. On this membrane, the anodic and cathodic catalysts with their support were loaded on five consecutive places in a back to back style forming five catalyst islands of same dimensions on each side of the membrane. So, five sub-fuel cells were existed in...
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