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dc.creatorTripković, Amalija
dc.creatorLović, Jelena
dc.creatorPopović, Ksenija
dc.date.accessioned2020-05-13T16:41:21Z
dc.date.available2020-05-13T16:41:21Z
dc.date.issued2010
dc.identifier.isbn978-86-7132-043-6
dc.identifier.urihttp://www.aseee.eu/index.php/rsesee2-home
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/3532
dc.description.abstractActivity of two alloys, Pt3Sn/C and Pt3Ru2/C, was compared with the activity of Pt/C modified with corresponding amounts of SnUPD (~25 %) and RuUPD (~40 %) in overall oxidation of ethanol. Pt3Sn/C, Pt3Ru2/C and Pt/C catalysts were characterized by XRD. To establish the activity and stability of the catalysts potentiodynamic, quasi steady-state and chronoamperometric measurements were performed. Both alloys are more active than SnUPD or RuUPD modified Pt/C catalysts. Electronic effect determining dominantly the activity of Pt3Sn/C is the main reason for its higher activity compared to Pt3Ru2/C. Since SnUPD and RuUPD do not provoke any significant modification of electronic environment, both modified Pt/C catalysts are less active than corresponding alloys. More pronounced difference in activity between Pt3Sn/C and SnUPD modified Pt/C than between Pt3Ru2/C and RuUPD modified Pt/C is caused by electronic effect in Pt3Sn/C. High activity of Pt3Sn/C modified with small amount of SnUPD (~10%) can be explained by combining the electronic effect, causing less strongly bonded adsorbate on Pt sites and easier mobility of SnUPD, with enhanced amount of oxygen-containing species on Sn sites resulting finally in reinforcement of bifunctional mechanism.en
dc.language.isoensr
dc.publisherSerbian Chemical Society, Belgradesr
dc.rightsopenAccesssr
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.sourceSecond Regional Symposium on Electrochemistry South-East Europe, RSE-SEE, Program and Book of Abstractssr
dc.subjectEthanol oxidationsr
dc.subjectPt-based alloyssr
dc.subjectCatalystssr
dc.titleEthanol oxidation at Pt-based alloys and UPD modified Pt/C catalystsen
dc.typeconferenceObjectsr
dc.rights.licenseBYsr
dcterms.abstractЛовић, Јелена; Трипковић, Aмалија; Поповић, Ксенија Ђ.;
dc.citation.spage139
dc.citation.epage139
dc.description.otherBelgrade, Serbia, June 6-10, 2010sr
dc.description.otherRelated to the published paper in the Proceedings of the Second Regional Symposium on Electrochemistry South-East Europe, [http://cer.ihtm.bg.ac.rs/handle/123456789/3533]
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs/bitstream/id/16464/rSE_SEE_13.pdf
dc.type.versionpublishedVersionsr


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