In situ structural characterization of a platinum electrocatalyst by dispersive x-ray absorption spectroscopy

Using in-situ dispersive EXAFS spectroscopy, we have monitored the numbers of PtO and PtPt bonds and the charge on the Pt in parallel with cyclic voltammetry on Pt clusters in a polymer electrolyte fuel cell. Due to the increased sensitivity of this method, we detect small structural changes not p...

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Veröffentlicht in:	Electrochimica acta 1994-11, Vol.39 (16), p.2415-2418
Hauptverfasser:	Allen, P.G., Conradson, S.D., Wilson, M.S., Gottesfeld, S., Raistrick, I.D., Valerio, J., Lovato, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adsorption Chemistry dispersive EXAFS electrocatalysts Electrochemistry Exact sciences and technology General and physical chemistry in situ EXAFS PEM fuel cell platinum Study of interfaces
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