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In situ XAFS fuel cell measurements of a carbon-supported Pt-Ru anode electrocatalyst in hydrogen and direct methanol operation

Roth, Christina ; Martz, Nathalie ; Buhrmester, Thorsten ; Scherer, J. ; Fuess, Hartmut (2002)
In situ XAFS fuel cell measurements of a carbon-supported Pt-Ru anode electrocatalyst in hydrogen and direct methanol operation.
In: Physical chemistry, chemical physics, 4
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

A special in-situ PEM fuel cell has been developed to make XAFS measurements during hydrogen and direct methanol operation possible. The chosen set-up in transmission allows for the on-line monitoring of changes in the catalysts oxidation states and their characteristic short-range order. In both operation modes, the catalyst is reduced during operation, as can be concluded from the XANES region of the spectra showing a decreased white-line intensity in E space.

Typ des Eintrags: Artikel
Erschienen: 2002
Autor(en): Roth, Christina ; Martz, Nathalie ; Buhrmester, Thorsten ; Scherer, J. ; Fuess, Hartmut
Art des Eintrags: Bibliographie
Titel: In situ XAFS fuel cell measurements of a carbon-supported Pt-Ru anode electrocatalyst in hydrogen and direct methanol operation
Sprache: Englisch
Publikationsjahr: 2002
Verlag: Royal Society of Chemistry Publishing
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Physical chemistry, chemical physics
Jahrgang/Volume einer Zeitschrift: 4
Kurzbeschreibung (Abstract):

A special in-situ PEM fuel cell has been developed to make XAFS measurements during hydrogen and direct methanol operation possible. The chosen set-up in transmission allows for the on-line monitoring of changes in the catalysts oxidation states and their characteristic short-range order. In both operation modes, the catalyst is reduced during operation, as can be concluded from the XANES region of the spectra showing a decreased white-line intensity in E space.

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Erneuerbare Energien
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Strukturforschung
Hinterlegungsdatum: 20 Nov 2008 08:16
Letzte Änderung: 20 Feb 2020 13:27
PPN:
Sponsoren: Financial support of the Deutsche Forschungsgemeinschaft (Fu 125/34-1-3) is gratefully acknowledged.
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