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dc.creatorTripković, Dušan
dc.creatorStevanović, Sanja
dc.creatorGavrilovic, A.
dc.creatorRogan, Jelena R.
dc.creatorLacnjevac, Uros
dc.creatorKravic, T.
dc.creatorJovanović, Vladislava
dc.date.accessioned2019-01-30T18:01:05Z
dc.date.available2019-01-30T18:01:05Z
dc.date.issued2018
dc.identifier.issn1868-2529
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2465
dc.description.abstractIn our previous paper, we described in detail studies of Sn influence on electrocatalytic activity of PtSn catalyst for CO and formic acid oxidation (StevanoviAc et al., J. Phys. Chem. C, 118 (2014) 278-289). The catalyst was composed of a Pt phase, Pt3Sn alloy and very small SnO2 particles. Different electrochemical treatment enabled studies of PtSn/C having Sn both in surface and subsurface layers and skeleton structure of this catalyst with Sn only in subsurface layers. The results obtained revealed the promotional effect of surface Sn whether alloyed or as oxide above all in preventing accumulation of CO and blocking the surface Pt atoms. As a consequence, in formic acid oxidation, the currents are not entering the plateau but increasing constantly until reaching a maximum. It was concluded that at lower potentials the effect of Sn on formic acid oxidation was predominantly electronic but with increasing the potential bi-functional mechanism prevailed due to the leading role of SnO2. This role of SnO2 is restated in the present study. Therefore, CO and formic acid oxidation were examined at PtSnO2/C catalyst. The catalyst was synthesised by the same microwave-assisted polyol procedure. According to XRD analysis, the catalyst is composed of a Pt phase and SnO2 phase. The reactions were examined on PtSnO2/C catalyst treated on the same way as PtSn/C. Comparing the results obtained, the role of SnO2 is confirmed and at the same time the significance of alloyed Sn and its electronic effect is revealed.en
dc.publisherSpringer, New York
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172060/RS//
dc.rightsrestrictedAccess
dc.sourceElectrocatalysis
dc.subjectPtSnO2/Cen
dc.subjectPtSn/Cen
dc.subjectFormic acid oxidationen
dc.subjectCO oxidationen
dc.titleThe Role of SnO2 on Electrocatalytic Activity of PtSn Catalystsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractЛацњевац, У.; Трипковић, Душан; Јовановић, Владислава; Роган, Ј.; Гавриловиц, A.; Стевановић, Сања; Кравиц, Т.;
dc.citation.volume9
dc.citation.issue1
dc.citation.spage76
dc.citation.epage85
dc.citation.other9(1): 76-85
dc.citation.rankM22
dc.identifier.doi10.1007/s12678-017-0424-4
dc.identifier.rcubConv_3847
dc.identifier.scopus2-s2.0-85039426722
dc.identifier.wos000418815500010
dc.type.versionpublishedVersion


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