Hydrogen oxidation on ordered intermetallic electrodes covered with CO

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorInnocente, A. F.
dc.creatorAngelo, A. C. D.
dc.date2014-05-20T13:26:55Z
dc.date2016-10-25T16:46:58Z
dc.date2014-05-20T13:26:55Z
dc.date2016-10-25T16:46:58Z
dc.date2008-01-10
dc.date.accessioned2017-04-05T20:06:58Z
dc.date.available2017-04-05T20:06:58Z
dc.identifierJournal of Power Sources. Amsterdam: Elsevier B.V., v. 175, n. 2, p. 779-783, 2008.
dc.identifier0378-7753
dc.identifierhttp://hdl.handle.net/11449/8751
dc.identifierhttp://acervodigital.unesp.br/handle/11449/8751
dc.identifier10.1016/j.jpowsour.2007.10.001
dc.identifierWOS:000252634300009
dc.identifierhttp://dx.doi.org/10.1016/j.jpowsour.2007.10.001
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/857050
dc.descriptionThis describes an experimental evaluation of the electrocatalytic activity of the hydrogen oxidation reaction on electrodes of platinum and the ordered intermetallic phases PtSb and PtSn, on which CO has previously been deposited. The experiments were carried out in perchloric acid solution and the analysis based on steady-state polarization curves and Tafel plots derived from chronoamperometric data. Both intermetallics, PtSb and PtSn, performed better than Pt towards the HOR, when their surface was deliberately covered with CO. It is suggested that the intermetallic surfaces have a lower affinity for CO molecules, causing a lower CO coverage on these surfaces, and/or a weaker surface-CO interaction, compared to Pt under the same conditions. (C) 2007 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherElsevier B.V.
dc.relationJournal of Power Sources
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectordered intermetallic materials
dc.subjectCO adsorption
dc.subjectelectrocatalysis
dc.subjecthydrogen oxidation
dc.titleHydrogen oxidation on ordered intermetallic electrodes covered with CO
dc.typeOtro


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