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dc.creatorElezović, Nevenka R.
dc.creatorGajić Krstajić, Ljiljana
dc.creatorRadmilović, Velimir R.
dc.creatorVračar, Ljiljana
dc.creatorKrstajić, Nedeljko
dc.date.accessioned2018-07-06T17:51:20Z
dc.date.available2018-07-06T17:51:20Z
dc.date.issued2009
dc.identifier.issn0013-4686
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/3485
dc.description.abstractThe influence of poisoning of Pt catalyst by CO on the kinetics and mechanism of H2 oxidation reaction (HOR) at Pt/C electrode in 0.5 mol dm-3 HClO4, saturated with H2 containing 100 ppm CO, was examined with rotating disc electrode (RDE) at 22 °C. Commercial carbon black, Vulcan XC-72 was used as support, while Pt/C catalyst was prepared by modified polyol synthesis method in an ethylene glycol (EG) solution. The kinetically controlled current (Ik) for the HOR at Pt/C decreases significantly at CO coverage (ΘCO) > 0.6. For ΘCO < 0.6 the HOR takes place through Tafel-Volmer mechanism with Tafel reaction as rate-determining step at the low CO coverage, while Volmer step controls the overall reaction rate at the medium CO coverage. When CO coverage is higher then 0.6, Heyrovsky-Volmer mechanism is operative for the HOR with Heyrovsky as the rate-determining step (rds). © 2008 Elsevier Ltd. All rights reserved.
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142038/RS//
dc.rightsrestrictedAccess
dc.sourceElectrochimica Acta
dc.subjectCO adsorption
dc.subjecthydrogen oxidation
dc.subjectmechanism
dc.subjectRDE
dc.subjectPt nanosized catalyst
dc.titleEffect of chemisorbed carbon monoxide on Pt/C electrode on the mechanism of the hydrogen oxidation reaction
dc.typearticleen
dc.rights.licenseARR
dcterms.abstractВрачар, Љиљана; Елезовић, Невенка Р.; Крстајић, Недељко В.; Гајић-Крстајић, Љиљана; Радмиловић, Велимир Р.;
dc.citation.spage1375
dc.citation.epage1382
dc.citation.volume54
dc.citation.issue4
dc.identifier.wos000262810900031
dc.identifier.doi10.1016/j.electacta.2008.08.067
dc.identifier.scopus2-s2.0-57749182921
dc.type.versionpublishedVersion


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