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dc.creatorStojmenović, Marija
dc.creatorBošković, Snežana B.
dc.creatorBučevac, Dušan
dc.creatorPrekajski, Marija D.
dc.creatorBabić, Biljana M.
dc.creatorMatović, Branko
dc.creatorMentus, Slavko V.
dc.date.accessioned2018-03-01T23:04:59Z
dc.date.available2018-03-01T23:04:59Z
dc.date.issued2013
dc.identifier.issn0272-8842 (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/5258
dc.description.abstractCeria ceramics was obtained from multi-doped nanosized ceria powders prepared by both modified glycine nitrate procedure (MGNP) and self-propagating reaction at room temperature (SPRT). Rare earth elements such as Nd, Sm, Gdr, Dy, Y, Yb were used as dopants. The overall mole fraction of dopants was 0.2. One-hour long sintering of powder compacts was performed at 1500 degrees C in oxygen atmosphere. Phase composition, microstructure and ionic conductivity of sintered samples were analysed. Single-phase ceria was detected in all samples. In general, the increase in the number of dopants improved the ionic conductivity. The samples doped simultaneously with five dopants had the highest ionic conductivity, as evidenced by the impedance measurements. At 450 degrees C, the conductivity of sample obtained by MGNP was 3.94 x 10(-3) Omega(-1) cm(-1) whereas the conductivity of sample obtained by SPRT was 2.61 x 10(-3) Omega(-1) cm(-1). The conductivity activation energy for MGNP and SPRT samples was measured to be 0.348 and 0.385 eV, respectively. Finally, the conductivity decreased as the number of dopants increased to six. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.rightsrestrictedAccessen
dc.sourceCeramics Internationalen
dc.subjectSinteringen
dc.subjectIonic conductivityen
dc.subjectCeO2en
dc.subjectFuel cellsen
dc.titleElectrical characterization of multidoped ceria ceramicsen
dc.typearticleen
dcterms.abstractСтојменовић Марија; Бошковић Снежана; Бучевац Душан; Бабиц, Б.; Матовић Бранко; Ментус, С.; Прекајски-Ђорђевић Марија;
dc.citation.volume39
dc.citation.issue2
dc.citation.spage1249
dc.citation.epage1255
dc.identifier.wos000313379400045
dc.identifier.doi10.1016/j.ceramint.2012.07.055
dc.citation.rankM21
dc.identifier.scopus2-s2.0-84870289142


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