Show simple item record

dc.creatorPanić, Vladimir
dc.creatorDekanski, Aleksandar
dc.creatorMitrić, Miodrag
dc.creatorMilonjić, Slobodan K.
dc.creatorMišković-Stanković, Vesna
dc.creatorNikolic, Branislav Z.
dc.date.accessioned2019-01-30T17:22:30Z
dc.date.available2019-01-30T17:22:30Z
dc.date.issued2010
dc.identifier.issn1463-9076
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/638
dc.description.abstractElectrochemical properties of sol-gel processed Ti(0.6)Ir(0.4)O(2) and Ti(0.6)Ru(0.3)Ir(0.1)O(2) coatings on titanium substrate were investigated using cyclic voltammetry, polarization measurements and electrochemical impedance spectroscopy and compared to the properties of Ti(0.6)Ru(0.4)O(2) coating. The role of iridium oxide in the improvement of the electrocatalytic, capacitive and stability properties of titanium anodes activated by a RuO(2)-TiO(2) coating is discussed. The oxide sols were prepared by forced hydrolysis of the metal chlorides. The characterization by dynamic light scattering and X-ray diffraction showed that polydisperse oxide sols were obtained with the particles tending to form agglomerates. The presence of IrO(2) causes a suppression of the X-ray diffraction peaks of TiO(2) and RuO(2) in the sol-gel prepared Ti(0.6)Ir(0.4)O(2) and Ti(0.6)Ru(0.3)Ir(0.1)O(2) coatings. The IrO(2)-containing coatings had an enhanced charge storage ability and activity for the oxygen evolution reaction (OER) in comparison to Ti(0.6)Ru(0.4)O(2) coating. The voltammogram of the Ti(0.6)Ir(0.4)O(2)/Ti electrode showed well-resolved peaks related to Ir redox transitions, which are responsible for the enhanced charge storage ability of IrO(2)-containing coatings. Redox transitions of Ir were also registered in the high-frequency domain of the ac impedance spectra of the coatings as a semicircle with characteristics insensitive to the electrolyte composition and to the electrode potential prior to OER. However, the semicircle characteristics were different for the two IrO(2)-containing coatings, as well as at potentials outside the OER in comparison to those at which the OER occurs.en
dc.publisherRoyal Soc Chemistry, Cambridge
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142048/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142061/RS//
dc.rightsrestrictedAccess
dc.sourcePhysical Chemistry Chemical Physics
dc.titleThe effect of the addition of colloidal iridium oxide into sol-gel obtained titanium and ruthenium oxide coatings on titanium on their electrochemical propertiesen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractНиколиц, Бранислав З.; Декански, Aлександар; Мисковиц-Станковиц, Весна Б.; Панић, Владимир; Милоњић, Слободан К.; Митрић, Миодраг;
dc.citation.volume12
dc.citation.issue27
dc.citation.spage7521
dc.citation.epage7528
dc.citation.other12(27): 7521-7528
dc.citation.rankM21
dc.identifier.pmid20544088
dc.identifier.doi10.1039/b921582d
dc.identifier.rcubConv_2526
dc.identifier.scopus2-s2.0-77954339067
dc.identifier.wos000279514500024
dc.type.versionpublishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record