Abstract:In this work we investigated Nafion® 211 polymer electrolyte membranes after 1600 h operation at open circuit voltage. With scanning electron microscopy (SEM) platinum deposition was identified inside the membrane. By investigation of cross sections with Atomic Force Microscopy (AFM) numerous platinum particles and micrometer large two-dimensional sheets of platinum particles were found across the membrane. Conductive AFM was performed to measure the electronic current across the membrane. To avoid additional … Show more
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