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Electrochemical oxidation of methanol on Pt nanoparticles dispersed on RuO2

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dc.contributor.authorVillullas, H. M.
dc.contributor.authorMattos-Costa, F. I.
dc.contributor.authorBulhoes, LOS
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:21:34Z
dc.date.available2014-05-20T15:21:34Z
dc.date.issued2004-08-26
dc.description.abstractPt-modified RuO2 was prepared by a sol-gel procedure on titanium substrates in the form of thin films of similar to2-mum thickness. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) analyses showed that these films actually consist of Pt nanoparticles dispersed in RuO2 and that neither metallic Ru nor Pt-Ru alloy are present on the surface. Electrodes with different Pt:Ru nominal compositions were prepared and their electrocatalytic activity for the oxidation of methanol was investigated by potential sweeps and chronoamperometry. The results obtained show an enhancement effect for methanol oxidation that can be interpreted as associated to the formation of hydrous oxides on the RuO2 surface.en
dc.description.affiliationUniv Fed Sao Carlos, CMDMC, LIEC, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil.
dc.format.extent12898-12903
dc.identifierhttp://dx.doi.org/10.1021/jp049662r
dc.identifier.citationJournal of Physical Chemistry B. Washington: Amer Chemical Soc, v. 108, n. 34, p. 12898-12903, 2004.
dc.identifier.doi10.1021/jp049662r
dc.identifier.issn1520-6106
dc.identifier.urihttp://hdl.handle.net/11449/32693
dc.identifier.wosWOS:000223430800041
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Physical Chemistry B
dc.relation.ispartofjcr3.146
dc.relation.ispartofsjr1,331
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleElectrochemical oxidation of methanol on Pt nanoparticles dispersed on RuO2en
dc.typeArtigo
dcterms.licensehttp://pubs.acs.org/paragonplus/copyright/jpa_form_a.pdf
dcterms.rightsHolderAmer Chemical Soc
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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Araraquara - IQAR - Instituto de Química