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The purpose of this study is to examine the effects of exchange current density, as dependent on operating parameters, on the activation polarization in an HTPEM fuel cell. In line with this purpose, cell performance tests were performed for different relative humidity levels (from 0 to 20% in steps of 5%) and six different acid doping levels (4.26, 4.53, 4.95, 5.51, 7.24, 7.51 H3PO4/RPU PBI) at constant...
An energy analysis for the H3PO4 (phosphoric acid) doped PBI (polybenzimidazole) polymer electrolyte membrane fuel cell depending on the operating temperature is aimed in this study. In line with this aim, the relation of heat sources from electrochemical reaction, ionic and electronic current with the cell operating temperature is analyzed in detail for both anode catalyst layer and cathode catalyst...
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