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Synthesis and Characterization of Eletrocatalyst Powders for Application in PEM Fuel Cells

Title data

Franco, E. G. ; Aricó, E. ; Linardi, M. ; Roth, Christina ; Martz, N. ; Fuess, Hartmut:
Synthesis and Characterization of Eletrocatalyst Powders for Application in PEM Fuel Cells.
In: Materials Science Forum. Vol. 416-418 (2003) . - pp. 4-10.
ISSN 1662-9752
DOI: https://doi.org/10.4028/www.scientific.net/MSF.416-418.4

Abstract in another language

The Bonnemann method was chosen to synthesize carbon-supported Pt-Ru-Mo electrocatalyst powders, as this method 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 electron 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.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Electrochemical Process Engineering > Chair Electrochemical Process Engineering - Univ.-Prof. Dr. Christina Roth
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Electrochemical Process Engineering
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 22 Apr 2021 09:24
Last Modified: 22 Apr 2021 09:24
URI: https://eref.uni-bayreuth.de/id/eprint/64875