Franco, E. G. ; Arico, E. ; Linardi, M. ; Roth, Christina ; Martz, Nathalie ; Fuess, Hartmut (2003)
Synthesis and characterization of electrocatalyst powders for applications in PEM fuel cells.
In: Materials science forum, 416-418
doi: 10.4028/www.scientific.net/MSF.416-418.4
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The Bönnemann method was chosen to synthesize carbon-supported Pt-Ru-Mo electrocatalyst powders, as this mthod leads to highly-dispersed nanoparticles with an average particle size of approximately 2 nm. Structural characterization of the resulting catalysts was done by the following techniques: X-rays fluorescence analysis (XFA) and nanosize-energy dispersive X-rays analysis (nano-EDX)to obtain information about noble metal loading and composition as well as X-rays diffraction (XRD) and high resolution transmission electropn microscopy (HRTEM) to determine structure, dispersion and crystallite size of the nanoparticles. X-rays photoelectron spectroscopy (XPS) was applied to detect amorphous phases and to determine the oxidation states of Pt, Ru and Mo. The morphology of membrane electrode assemblies, prepared by a spraying technique, was checked by scanning electron microscopy (SEM). For the determination of the electrocatalytic activity E/i curves in single cell arrangements were recorded using both H2/CO mixtures and methanol as feed gases.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2003 |
| Autor(en): | Franco, E. G. ; Arico, E. ; Linardi, M. ; Roth, Christina ; Martz, Nathalie ; Fuess, Hartmut |
| Art des Eintrags: | Bibliographie |
| Titel: | Synthesis and characterization of electrocatalyst powders for applications in PEM fuel cells |
| Sprache: | Englisch |
| Publikationsjahr: | 2003 |
| Verlag: | Trans Tech Publications, Switzerland |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Materials science forum |
| Jahrgang/Volume einer Zeitschrift: | 416-418 |
| DOI: | 10.4028/www.scientific.net/MSF.416-418.4 |
| Kurzbeschreibung (Abstract): | The Bönnemann method was chosen to synthesize carbon-supported Pt-Ru-Mo electrocatalyst powders, as this mthod leads to highly-dispersed nanoparticles with an average particle size of approximately 2 nm. Structural characterization of the resulting catalysts was done by the following techniques: X-rays fluorescence analysis (XFA) and nanosize-energy dispersive X-rays analysis (nano-EDX)to obtain information about noble metal loading and composition as well as X-rays diffraction (XRD) and high resolution transmission electropn microscopy (HRTEM) to determine structure, dispersion and crystallite size of the nanoparticles. X-rays photoelectron spectroscopy (XPS) was applied to detect amorphous phases and to determine the oxidation states of Pt, Ru and Mo. The morphology of membrane electrode assemblies, prepared by a spraying technique, was checked by scanning electron microscopy (SEM). For the determination of the electrocatalytic activity E/i curves in single cell arrangements were recorded using both H2/CO mixtures and methanol as feed gases. |
| 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: | 11 Mär 2020 09:18 |
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