Adsorption of dihydrogen phosphate ion on platinum electrodes in aqueous media monitored by probe-beam deflection

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dc.contributor.authorBidoia, Ederio Dino [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:22Z
dc.date.available2014-05-27T11:21:22Z
dc.date.issued2005-06-07
dc.description.abstractProbe-beam deflection (PBD) was used to monitor concentration gradients of anions adjacent to the surface of a platinum electrode in acidic aqueous media containing H3PO4. PBD can measure the potential-dependent extent of adsorption of H2PO4- on the Pt electrode surface and permits the Langmuir isotherm to be fitted to the experimental data. The value thus obtained for the surface concentration was 1.3 × 10-11 mol mm -2, or 1.7 atoms of Pt per H2PO4-. Also, the electron transfer number obtained was 0.24, signifying an incomplete transfer of charge, and the equilibrium constant is 1.80 suggesting a reversible adsorption process. © 2005 Elsevier B.V. All rights reserved.en
dc.description.affiliationDepartamento de Bioquímica e Microbiologia IB - UNESP, Cx. Postal 199, 13506-900 Rio Claro, Sao Paulo
dc.description.affiliationUnespDepartamento de Bioquímica e Microbiologia IB - UNESP, Cx. Postal 199, 13506-900 Rio Claro, Sao Paulo
dc.format.extent1-4
dc.identifierhttp://dx.doi.org/10.1016/j.cplett.2005.03.138
dc.identifier.citationChemical Physics Letters, v. 408, n. 1-3, p. 1-4, 2005.
dc.identifier.doi10.1016/j.cplett.2005.03.138
dc.identifier.issn0009-2614
dc.identifier.lattes9220348583560043
dc.identifier.orcid0000-0001-7040-1983
dc.identifier.scopus2-s2.0-18844393771
dc.identifier.urihttp://hdl.handle.net/11449/68284
dc.identifier.wosWOS:000229655200001
dc.language.isoeng
dc.relation.ispartofChemical Physics Letters
dc.relation.ispartofjcr1.686
dc.relation.ispartofsjr0,656
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAdsorption
dc.subjectCharge transfer
dc.subjectElectrodes
dc.subjectNegative ions
dc.subjectPhosphates
dc.subjectPlatinum
dc.subjectSolutions
dc.subjectSpectrometers
dc.subjectAnion adsorption
dc.subjectDihydrogen
dc.subjectElectrode surfaces
dc.subjectProbe-beam detection
dc.subjectIons
dc.titleAdsorption of dihydrogen phosphate ion on platinum electrodes in aqueous media monitored by probe-beam deflectionen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes9220348583560043[1]
unesp.author.orcid0000-0001-7040-1983[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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