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

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:21:07Z
dc.date.available2014-05-20T15:21:07Z
dc.date.created2014-05-20T15:21:07Z
dc.date.issued2007-04-01
dc.identifierInternational Journal of Hydrogen Energy. Oxford: Pergamon-Elsevier B.V., v. 32, n. 5, p. 542-547, 2007.
dc.identifier0360-3199
dc.identifierhttp://hdl.handle.net/11449/32292
dc.identifier10.1016/j.ijhydene.2006.06.052
dc.identifierWOS:000245773200005
dc.identifier3122186027481205
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.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationInternational Journal of Hydrogen Energy
dc.relation4.229
dc.relation1,116
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectplatinum surface
dc.subjectelectrocatalysis
dc.subjectsurface modification
dc.subjectHER
dc.titleElectrocatalysis of hydrogen evolution reaction on Pt electrode surface-modified by S-2 chemisorption
dc.typeArtículos de revistas


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