Glycerol oxidation reaction using PdAu/C electrocatalysts

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dc.contributor.authorOttoni, Cristiane Angélica [UNESP]
dc.contributor.authorda Silva, Sirlane G.
dc.contributor.authorDe Souza, Rodrigo F. B.
dc.contributor.authorNeto, Almir Oliveira
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionIPEN/CNEN-SP
dc.date.accessioned2018-12-11T16:40:44Z
dc.date.available2018-12-11T16:40:44Z
dc.date.issued2016-07-01
dc.description.abstractGlycerol oxidation reactions were evaluated using PdAu/C electrocatalysts under alkaline conditions. These electrocatalysts were synthesized in different ratios (100:0, 75:25, 50:50, 25:75, and 0:100), using the borohydride reduction method. The materials were characterized with X-ray diffraction (XRD), transmission electron microscopy (TEM), and electrochemical techniques associated by in situ attenuated total reflectance Fourier transformed infrared spectroscopy (ATR-FTIR). According to the XRD diffractograms, the presence of Pd and Au (face-centered cubic (fcc)) phases and Pd-Au (fcc) alloys were detected. Cyclic voltammetry assisted by ATR-FTIR in situ and chronoamperometry experiments revealed that the addition of Au remarkably enhances the electrocatalytic activity, due to the action of bifunctional effect, with addition of the interactions of alcohoxide with hydroxylate species in gold surface, and the stability of Pd/C catalysts. Highest current density (≈4 mA mgmetal −1) was achieved for the catalyst Pd50Au50/C and Pd75Au25/C, which is two times higher than that achieved by Pd/C (2 mA mgmetal −1), demonstrating the beneficial effect of the PdAu alloy.en
dc.description.affiliationBiosciences Institute São Paulo State University - UNESP, Coastal Campus
dc.description.affiliationInstituto de Pesquisas Energéticas e Nucleares IPEN/CNEN-SP, Av. Prof. Lineu Prestes, 2242 Cidade Universitária, CEP 05508-900
dc.description.affiliationUnespBiosciences Institute São Paulo State University - UNESP, Coastal Campus
dc.format.extent1167-1175
dc.identifierhttp://dx.doi.org/10.1007/s11581-015-1631-8
dc.identifier.citationIonics, v. 22, n. 7, p. 1167-1175, 2016.
dc.identifier.doi10.1007/s11581-015-1631-8
dc.identifier.file2-s2.0-84955261741.pdf
dc.identifier.issn1862-0760
dc.identifier.issn0947-7047
dc.identifier.lattes9620122455708223
dc.identifier.orcid0000-0003-4069-509X
dc.identifier.scopus2-s2.0-84955261741
dc.identifier.urihttp://hdl.handle.net/11449/168311
dc.language.isoeng
dc.relation.ispartofIonics
dc.relation.ispartofsjr0,557
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectGlycerol oxidation reaction
dc.subjectPalladium-electrocatalyst
dc.subjectPdAu alloy
dc.titleGlycerol oxidation reaction using PdAu/C electrocatalystsen
dc.typeArtigo
unesp.author.lattes9620122455708223[1]
unesp.author.orcid0000-0003-4069-509X[1]

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