Synthesis and characterization of Pt/Ru/C catalysts obtained by colloidal and deposition methods for fuel cell applications

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dc.contributor.authorFRANCO, E.G.pt_BR
dc.contributor.authorOLIVEIRA NETO, A.pt_BR
dc.contributor.authorSPINACE, E.V.pt_BR
dc.contributor.authorLINARDI, M.pt_BR
dc.contributor.authorMARTZ, N.pt_BR
dc.contributor.authorMAZUREK, M.pt_BR
dc.contributor.authorFUESS, H.pt_BR
dc.coverageNacionalpt_BR
dc.date.accessioned2014-07-31T11:33:38Zpt_BR
dc.date.accessioned2014-07-31T11:57:14Z
dc.date.available2014-07-31T11:33:38Zpt_BR
dc.date.available2014-07-31T11:57:14Z
dc.date.issued2005pt_BR
dc.description.abstractThe purpose of this investigation was to compare catalysts produced by the Bönnemann - colloidal method (PtRu (B1) and PtRu (B2)), and those produced by the spontaneous deposition method (PtRu (SD)). The catalysts produced by both methods had good electrochemical behavior for methanol oxidation for proton exchange membrane fuel cell applications. The structure of the catalyst was examined by transmission electron microscopy (TEM). Energy dispersive spectroscopic analysis (EDS) was used to determine the semi-quantitative composition of the catalysts, and the electrochemical behavior was determined by cyclic voltammetry (CV). The diffractograms of the binary catalysts revealed platinum and ruthenium as the only crystalline phases, as per ICDD data base. The PtRu (B1) catalyst, treated in a reducing atmosphere, has the same structure as PtRu (B2), treated in an oxidising/reducing atmosphere, except that the crystallite size was around 1.7 nm for PtRu (B1) instead of 9.9 nm for PtRu (B2). The catalysts PtRu (B2) and PtRu (SD) showed similar cyclic voltammetric behavior, which was better than that of PtRu (B1). Both methods are suitable for the production of electrocatalysts for fuel cell applications. The colloidal method is more expensive than the deposition method, but the former permits the production of ternary and quaternary catalyst systems with enhanced CO tolerance.
dc.format.extent117-120pt_BR
dc.identifier.citationFRANCO, E.G.; OLIVEIRA NETO, A.; SPINACE, E.V.; LINARDI, M.; MARTZ, N.; MAZUREK, M.; FUESS, H. Synthesis and characterization of Pt/Ru/C catalysts obtained by colloidal and deposition methods for fuel cell applications. <b>Materials Research</b>, v. 8, n. 2, p. 117-120, 2005. DOI: <a href="https://dx.doi.org/10.1590/S1516-14392005000200003">10.1590/S1516-14392005000200003</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/7638.
dc.identifier.doi10.1590/S1516-14392005000200003
dc.identifier.fasciculo2pt_BR
dc.identifier.issn1516-1439pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0105-6519
dc.identifier.orcidhttps://orcid.org/0000-0002-7011-8261
dc.identifier.orcidhttps://orcid.org/0000-0002-9287-6071
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/7638pt_BR
dc.identifier.vol8pt_BR
dc.relation.ispartofMaterials Researchpt_BR
dc.rightsopenAccessen
dc.subjectfuel cellspt_BR
dc.subjectproton exchange membrane fuel cellspt_BR
dc.subjectcatalystspt_BR
dc.subjectelectrocatalystspt_BR
dc.subjectplatinumpt_BR
dc.subjectrutheniumpt_BR
dc.subjectsynthesispt_BR
dc.subjectcolloidspt_BR
dc.subjectdepositionpt_BR
dc.subjectcomparative evaluationspt_BR
dc.subjectmethanolpt_BR
dc.subjectoxidationpt_BR
dc.titleSynthesis and characterization of Pt/Ru/C catalysts obtained by colloidal and deposition methods for fuel cell applicationspt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorMARCELO LINARDI
ipen.autorESTEVAM VITORIO SPINACE
ipen.autorALMIR OLIVEIRA NETO
ipen.autorEGBERTO GOMES FRANCO
ipen.codigoautor279
ipen.codigoautor555
ipen.codigoautor3541
ipen.codigoautor2830
ipen.contributor.ipenauthorMARCELO LINARDI
ipen.contributor.ipenauthorESTEVAM VITORIO SPINACE
ipen.contributor.ipenauthorALMIR OLIVEIRA NETO
ipen.contributor.ipenauthorEGBERTO GOMES FRANCO
ipen.date.recebimento06-01pt_BR
ipen.identifier.fiSem F.I.pt_BR
ipen.identifier.ipendoc11164pt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication274f973a-ce40-4261-a1d1-6a496557ba2b
relation.isAuthorOfPublicationb0db71ff-181e-47eb-858d-42e12ef2a93e
relation.isAuthorOfPublication13be55b2-f917-45c4-bc6b-5f315bd0290f
relation.isAuthorOfPublication03de8540-9cb9-49fa-af22-646eb1e73b4f
relation.isAuthorOfPublication.latestForDiscovery03de8540-9cb9-49fa-af22-646eb1e73b4f
sigepi.autor.atividadeFRANCO, E.G.:2830:-1:Spt_BR
sigepi.autor.atividadeOLIVEIRA NETO, A.:3541:33:Npt_BR
sigepi.autor.atividadeSPINACE, E.V.:555:33:Npt_BR
sigepi.autor.atividadeLINARDI, M.:279:33:Npt_BR
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