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Electrocatalysis of hydrogen evolution reaction on Pt electrode surface-modified by S-2 chemisorption

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dc.contributor.authorAngelo, A. C. D.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:21:07Z
dc.date.available2014-05-20T15:21:07Z
dc.date.issued2007-04-01
dc.description.abstractKinetic studies of hydrogen evolution reaction (HER) at the surface of Pt in alkaline conditions, reported in this paper, show that electrocatalytic activity is enhanced after adsorption of S-2 ions. EIS and steady-state polarization curve data pointed to an undoubted improvement in performance with the Pt-S cathode that was attributed to higher adsorbed hydrogen coverage. Experimental findings suggested an increase in the electronic density of the modified surface sites that may strengthen the interaction between H2O and the adsorption site and, consequently, accelerates the Volmer step. (c) 2006 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv Estadual Paulista, Dept Chem, Electrocatalysis Lab, BR-17033360 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Chem, Electrocatalysis Lab, BR-17033360 São Paulo, Brazil
dc.format.extent542-547
dc.identifierhttp://dx.doi.org/10.1016/j.ijhydene.2006.06.052
dc.identifier.citationInternational Journal of Hydrogen Energy. Oxford: Pergamon-Elsevier B.V., v. 32, n. 5, p. 542-547, 2007.
dc.identifier.doi10.1016/j.ijhydene.2006.06.052
dc.identifier.issn0360-3199
dc.identifier.lattes3122186027481205
dc.identifier.urihttp://hdl.handle.net/11449/32292
dc.identifier.wosWOS:000245773200005
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.ispartofjcr4.229
dc.relation.ispartofsjr1,116
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectplatinum surfacept
dc.subjectelectrocatalysispt
dc.subjectsurface modificationpt
dc.subjectHERpt
dc.titleElectrocatalysis of hydrogen evolution reaction on Pt electrode surface-modified by S-2 chemisorptionen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
unesp.author.lattes3122186027481205[1]
unesp.author.orcid0000-0002-7980-185X[1]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências, Baurupt
unesp.departmentQuímica - FCpt

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