Synthesis and characterization of eletrocatalyst powders for application in PEM fuel cells
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2001
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ADVANCED POWDER TECHNOLOGY 3 - INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 2rd
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Resumo
The Bdnnemann 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.
Como referenciar
FRANCO, E.G.; ARICO, E.M.; LINARDI, M.; ROTH, C.; MARTZ, N.; FUESS, H. Synthesis and characterization of eletrocatalyst powders for application in PEM fuel cells. In: ADVANCED POWDER TECHNOLOGY 3 - INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 2rd, Nov. 26-28, 2001, Florianopolis, SC. Proceedings... p. 15-21. Disponível em: http://repositorio.ipen.br/handle/123456789/15355. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.