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In our previous work, we have proposed a new method to estimate the effective Pt utilization or “effectiveness” (Ef Pt ) using the ratio of the mass activity (MA) for the oxygen reduction reaction in the membrane-electrode assembly (MEA) in the polymer electrolyte fuel cell to that in the channel flow double electrode measurement, MA max , under similar conditions. In the present research,...
To facilitate the development of high performance polymer electrolyte fuel cells (PEFCs), we have proposed a new evaluation method for the effectiveness of Pt (Ef Pt ) under actual PEFC operating conditions. We also have examined the dependence of the values of Ef Pt on experimental parameters, including the ionomer content in the catalyst layer. The Ef Pt parameter is defined...
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