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Catalyst structure identified in an operating PEM fuel cell

Research at the group of Dr Moniek Tromp of the University of Amsterdam's research priority area Sustainable Chemistry has revealed the structure of the palladium catalyst for hydrogen oxidation in proton exchange membrane (PEM) fuel cells. Contrary to current views the results, obtained by applying X-ray spectroscopy under operating conditions, indicate the existence of a hydride phase throughout the operating range.
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