ELIANA MARIA ARICO
10 resultados
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Resumo IPEN-doc 09465 Pt-rare earth electrocatalysts for proton exchange membrane fuel cell2003 - FRANCO, E.G.; SANTORO, T.A.B.; BRANDAO, S.R.; OLIVEIRA NETO, A.; SPINACE, E.V.; ARICO, E.M.; LINARDI, M.Resumo IPEN-doc 14817 Estudos sobre eletrocatalisadores PtCesub(0.9)Wsub(0.1)Osub(2)/C tolerantes a CO em celulas a combustivel do tipo PEMFC2009 - ARICO, ELIANA M.; FERREIRA, CAROLINA N.; MORA, MARTHA B.; SANTIAGO, ELISABETE I.; LINARDI, MARCELOArtigo IPEN-doc 09170 Electro-oxidation of methanol and ethanol on Pt-Ru/C and Pt-Ru-Mo/C electrocatalysts prepared by Boennemann's method2002 - OLIVEIRA NETO, A.; FRANCO, E.G.; ARICO, E.M.; LINARDI, M.; GONZALEZ, E.R.Artigo IPEN-doc 08462 Formulacao de novos eletrocatalisadores pelo metodo de Boennemamm para a oxidacao da mistura Hsub(2)/CO e metanol em celulas a combustivel a membrana trocadora de protons2001 - FRANCO, E.G.; LINARDI, M.; ARICO, E.M.Artigo IPEN-doc 08151 Synthesis and characterization of eletrocatalyst powders for application in PEM fuel cells2001 - FRANCO, E.G.; ARICO, E.M.; LINARDI, M.; ROTH, C.; MARTZ, N.; FUESS, H.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.Artigo IPEN-doc 17698 Eletrocatalisador de Pt(Cesub(0.9)Rusub(0.1)Osub(2)+RuOsub(2))/C nano-disperso para anodo tolerante ao Co2011 - LULIO, LIGIA C.D.; ISIDORO, ROBERTA A.; DRESCH, MAURO A.; ARICO, ELIANA M.; LINARDI, M.Artigo IPEN-doc 09561 Synthesis and characterization of eletrocatalyst powders for application in PEM fuel cells2003 - FRANCO, E.G.; ARICO, E.M.; LINARDI, M.; ROTH, C.; MARTZ, N.; FUESS, H.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.Artigo IPEN-doc 09082 Celulas a combustivel de baixa potencia para aplicacoes estacionarias2002 - WENDT, H.; LINARDI, M.; ARICO, E.M.Artigo IPEN-doc 09087 Synthesis of electrocatalysts by the Boennemann method for the oxidation of methanol and the mixture Hsub(2)/CO in a proton exchange membrane fuel cell2002 - FRANCO, E.G.; OLIVEIRA NETO, A.; LINARDI, M.; ARICO, E.M.Artigo IPEN-doc 09169 Electro-oxidation of methanol and ethanol on Pt-Ru/C and Pt-Ru-Mo/C electrocatalysts prepared by Boennemann's method2003 - OLIVEIRA NETO, A.; FRANCO, E.G.; ARICO, E.M.; LINARDI, M.; GONZALEZ, E.R.