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A combination of electrochemical, spectroscopic and gravimetric methods was carried out on Proton Exchange Membrane (PEM) fuel cell electrodes with the focus on platinum and ruthenium catalysts dissolution, and the membrane degradation. In cyclic voltammetry (CV) experiments, the noble metals were found to dissolve in 1M sulfuric acid solution and the dissolution increased exponentially with the upper...
The adsorption of Nafion™ ionomer on Proton Exchange Membrane Fuel Cell (PEMFC) catalysts and the supporting carbons was studied in aqueous solution by 500 MHz 19 Fluorine Nuclear Magnetic Resonance Spectroscopy (NMR). In addition, the materials were characterized with Brunauer-Emmett-Teller (BET) nitrogen adsorption–desorption and X-ray diffraction (XRD). It was observed that Nafion adsorbs...
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