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dc.creatorTripković, Amalija
dc.creatorŠtrbac, Svetlana
dc.creatorPopović, Ksenija
dc.date.accessioned2019-01-30T17:11:41Z
dc.date.available2019-01-30T17:11:41Z
dc.date.issued2003
dc.identifier.issn1388-2481
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/129
dc.description.abstractThe effect of temperature on the kinetics of methanol oxidation on supported 47.5 wt% Pt, 54 and 33.5 wt% Pt/Ru catalysts was studied in 0.1 M NaOH at 295, 313 and 333 K using thin-film rotating disk electrode (RDE) method. The catalysts were characterized by ex situ STM prior to the voltammetric studies. It was found that the activity of those catalysts for methanol oxidation was determined by a delicate balance between the surface coverage by COad and by OHad species. Significantly faster kinetics at higher temperatures clearly indicates that methanol oxidation at the catalysts studied is highly activated process. The highest effect of temperature is obtained at the least active Pt catalyst which has the highest activation energy. On the contrary, the smallest temperature effect is detected on the most active Pt3Ru2 catalyst having the lowest activation energy. These phenomena have been explained by the important role of the adsorption energies of both reactive intermediates (COad and OHad).en
dc.publisherElsevier Science Inc, New York
dc.rightsrestrictedAccess
dc.sourceElectrochemistry Communications
dc.subjectRDEen
dc.subjectPt-catalysten
dc.subjectPt/Ru-catalystsen
dc.subjectSTMen
dc.subjecteffect of temperatureen
dc.titleEffect of temperature on the methanol oxidation at supported Pt and PtRu catalysts in alkaline solutionen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractШтрбац, Светлана; Поповић, Ксенија; Трипковиц, AВ;
dc.citation.volume5
dc.citation.issue6
dc.citation.spage484
dc.citation.epage490
dc.citation.other5(6): 484-490
dc.citation.rankM21
dc.identifier.doi10.1016/S1388-2481(03)00111-5
dc.identifier.rcubConv_2306
dc.identifier.scopus2-s2.0-0037937608
dc.identifier.wos000183591400010
dc.type.versionpublishedVersion


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