Time-resolved monitoring of composite Nafion™ XL membrane degradation induced by Fenton's reaction

Although proton-exchange membrane fuel cells (PEMFC) are considered as a safe and clean energy technology, aging phenomena of the membrane-electrode assembly (MEA), more particularly membrane, still restrict PEMFC lifetime. In this paper, ex-situ accelerated chemical degradation – via Fenton's reagents exposure reinforced Nafion™ XL is performed in order to investigate impact on structure properties comparison with unreinforced NR211 membrane. Results demonstrated that both membranes undergo decomposition after at different rate. Emissions two main products released by were monitored function time, demonstrating greater stability compared However, water sorption transport seems negligible for membranes. This study aims providing new insight composite