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dc.creatorKowal, Andrzej
dc.creatorOlszewski, Piotr K.
dc.creatorTripković, Dušan
dc.creatorStevanović, Rade M.
dc.date.accessioned2019-01-30T17:14:50Z
dc.date.available2019-01-30T17:14:50Z
dc.date.issued2006
dc.identifier.issn0255-5476
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/281
dc.description.abstractElectrodes, assigned as GC/Pt-C and GC/Pt-Ru-C, were formed by deposition of Pt-based catalysts (47.5 wt % Pt + high surface area carbon) and (54 wt. % Pt-Ru alloy + high surface area carbon) on glassy carbon (GC) discs. X-ray diffraction measurements were used for the determination of the average crystallite size and phase composition of both catalysts. Crystallite size for Pt-C catalyst was 2.9 nm for Pt-fcc. In the diffraction pattern of the Pt-Ru-C catalyst two phases, e.g. Pt-Ru-fcc and Ru-hcp were refined using the Rietveld method. Crystallite sizes were 3.9 nm for Pt-Ru-fcc and 2.8 nm for Ru-hcp. STM observations of the surface of GC/Pt-C and GC/Pt-Ru-C electrodes revealed the presence of metal particles of the size in the range 2-6 nm and Pt-C or PtRu-C agglomerates in the range of several tenth of nm. The thickness of the Nafion covering layer determined by AFM is ca. 100 nm. A simplified scheme of the investigated electrodes was created.en
dc.rightsrestrictedAccess
dc.sourceMaterials Science Forum
dc.subjectAFMen
dc.subjectGlassy carbonen
dc.subjectPt catalysten
dc.subjectPt-Ru catalysten
dc.subjectSTMen
dc.subjectXRDen
dc.titleNanoscale topography of GC/Pt-C and GC/Pt-Ru-C electrodes studied by means of STM, AFM and XRD methodsen
dc.typeconferenceObject
dc.rights.licenseARR
dcterms.abstractОлсзеwски, П.; Трипковић, Душан; Коwал, A.; Стевановић, Р.;
dc.citation.volume518
dc.citation.spage271
dc.citation.epage276
dc.citation.other518: 271-276
dc.citation.rankM23
dc.identifier.doi10.4028/www.scientific.net/MSF.518.271
dc.identifier.rcubConv_4119
dc.identifier.scopus2-s2.0-37849022051
dc.identifier.wos000239351800045
dc.type.versionpublishedVersion


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