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dc.creatorElezović, Nevenka R.
dc.creatorBabić, Biljana M.
dc.creatorVračar, Ljiljana M
dc.creatorRadmilović, Velimir R
dc.creatorKrstajić, Nedeljko V
dc.date.accessioned2022-04-05T14:22:03Z
dc.date.available2022-04-05T14:22:03Z
dc.date.issued2009
dc.identifier.issn1463-9076
dc.identifier.urihttp://rimsi.imsi.bg.ac.rs/handle/123456789/352
dc.description.abstractThe hydrogen oxidation reaction (HOR) was studied at the home made TiOx-Pt/C nanocatalysts in 0.5 mol dm(-3) HClO4 at 25 degrees C. Pt/C catalyst was first synthesized by modified ethylene glycol method (EG) on commercially used carbon support (Vulcan XC-72). Then TiOx-Pt/C catalyst was prepared by the polyole method followed by TiOx post-deposition. The synthesized catalyst was characterized by XRD, TEM and EDX techniques. It was found that Pt/C catalyst nanoparticles were homogenously distributed over carbon support with the mean particle size of about 2.4 nm. The quite similar, homogenous distribution and particle size were obtained for Pt/C doped by TiOx catalyst which was the confirmation that TiOx post-deposition did not lead to significant growth of the Pt nanoparticles. The electrochemically active surface area of the catalyst was determined by using the cyclic voltammetry technique. The kinetics of hydrogen oxidation was investigated by the linear sweep voltammetry technique at the rotating disc electrode (RDE). The kinetic equations used for the analysis were derived considering the reversible or irreversible nature of the kinetics of the HOR. It was found that the hydrogen oxidation reaction for an investigated catalyst proceeded as an electrochemically reversible reaction. The values determined for the kinetic parameters-Tafel slope of 28 mV dec(-1) and exchange current density about 0.4 mA cm(Pt)(-2) are in good agreement with usually reported values for a hydrogen oxidation reaction with platinum catalysts in acid solutions.en
dc.publisherRoyal Soc Chemistry, Cambridge
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142038/RS//
dc.rightsrestrictedAccess
dc.sourcePhysical Chemistry Chemical Physics
dc.subjectFuel cells
dc.subjectPt catalysts
dc.subjecttitanium-oxide support
dc.subjecthydrogen oxidation
dc.subjectacid electrolyte
dc.titlePreparation and characterization TiOx-Pt/C catalyst for hydrogen oxidation reactionen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage5197
dc.citation.issue25
dc.citation.other11(25): 5192-5197
dc.citation.rankaM21
dc.citation.spage5192
dc.citation.volume11
dc.identifier.doi10.1039/b822249e
dc.identifier.pmid19562154
dc.identifier.scopus2-s2.0-67650099710
dc.identifier.wos000267499400034
dc.type.versionpublishedVersion


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Приказ основних података о документу