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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/70691
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dc.contributor.authorGodoi, Denis Ricardo Martins de-
dc.contributor.authorPerez, J.-
dc.contributor.authorVillullas, H. M.-
dc.date.accessioned2014-05-27T11:23:43Z-
dc.date.accessioned2016-10-25T18:26:17Z-
dc.date.available2014-05-27T11:23:43Z-
dc.date.available2016-10-25T18:26:17Z-
dc.date.issued2008-12-01-
dc.identifierhttp://dx.doi.org/10.1149/1.2953504-
dc.identifier.citationECS Transactions, v. 11, n. 31, p. 35-41, 2008.-
dc.identifier.issn1938-5862-
dc.identifier.issn1938-6737-
dc.identifier.urihttp://hdl.handle.net/11449/70691-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/70691-
dc.description.abstractThe Pt-Ru/C materials of this study were prepared by a microemulsion method with fixed water to surfactant molar ratio and heat treated at low temperatures, to avoid changes in the average particle size, in different atmospheres. All samples were characterized by X-ray diffraction (XRD) and the mean crystallite size was estimated by using Scherrer's equation. Catalysts morphology was characterized by transmission electron microscopy (TEM). Average composition was obtained by energydispersive X-ray analysis (EDX). The general electrochemical behavior was evaluated by cyclic voltammetry in 0.5 M sulfuric acid and the electrocatalytic activity towards the oxidation of methanol was studied in 0.5 M methanol acid solutions by potential sweeps and chronoamperometry. Oxidation of adsorbed CO was used to estimate the electrochemical active area and to infer the surface properties. ©The Electrochemical Society.en
dc.format.extent35-41-
dc.language.isoeng-
dc.sourceScopus-
dc.subjectAcid solutions-
dc.subjectActive area-
dc.subjectAdsorbed CO-
dc.subjectAverage composition-
dc.subjectAverage particle size-
dc.subjectEffects of heat treatment-
dc.subjectElectrocatalytic activity-
dc.subjectElectrochemical behaviors-
dc.subjectFixed water-
dc.subjectLow temperatures-
dc.subjectMethanol Oxidation-
dc.subjectMicroemulsion method-
dc.subjectMolar ratio-
dc.subjectOxidation of methanol-
dc.subjectPotential sweep-
dc.subjectScherrer's equation-
dc.subjectTEM-
dc.subjectAcids-
dc.subjectCarbon monoxide-
dc.subjectChemical analysis-
dc.subjectChronoamperometry-
dc.subjectCrystallite size-
dc.subjectElectrocatalysis-
dc.subjectElectrochemical properties-
dc.subjectElectrochemical sensors-
dc.subjectEnergy conversion-
dc.subjectHeat treatment-
dc.subjectMethanol-
dc.subjectMicroemulsions-
dc.subjectNanostructured materials-
dc.subjectOxidation-
dc.subjectPlatinum-
dc.subjectSulfuric acid-
dc.subjectSurface active agents-
dc.subjectSurface properties-
dc.subjectTransmission electron microscopy-
dc.subjectX ray diffraction-
dc.subjectCyclic voltammetry-
dc.titleEffects of heat treatments on the electrocatalytic activity of Pt-Ru/C for methanol oxidationen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationInstitute of Chemistry São Paulo State University (UNESP), CP 355, 14801-970, Araraquara (SP)-
dc.description.affiliationUnespInstitute of Chemistry São Paulo State University (UNESP), CP 355, 14801-970, Araraquara (SP)-
dc.identifier.doi10.1149/1.2953504-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofECS Transactions-
dc.identifier.scopus2-s2.0-65649108959-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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