Effect of concentration of Sm2O3 and Yb2O3 and synthesizing temperature on electrical and crystal structure of (Bi2O3)(1-x-y)(Sm2O3)(x)(Yb2O3)(y) electrolytes fabricated for IT-SOFCs

Basit Öğe Kaydı
dc.authorid0000-0002-0163-5097
dc.contributor.authorKayali, Refik
dc.contributor.authorOzen, Murivet Kasikci
dc.contributor.authorBezir, Nalan Cicek
dc.contributor.authorEvcin, Atilla
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2016
dc.departmentNiğde ÖHÜ
dc.description.abstractFor intermediate temperature solid oxide fuel cells (IT-SOFCs), (Bi2O3)(1-x-y)(Sm2O3)(x)(Yb2O3)(y) ternary systems (x=0.01 and y = 0.11), (x=0.05 andy= 0.07), (x=0.07 and y=0.05), and (x=0.11 and y=0.01) as electrolytes have been fabricated at different temperatures (700, 750, and 800 degrees C) by solid state ceramic technique (SST). The characterization of the samples has been performed by X-ray powder diffractometer (XRD), scanning electron microscopy (SEM), four point-probe method (FPPM), X-ray energy diffraction spectroscopy (EDX), and differential thermal analysis (DTA). XRD measurements have shown that only the samples (Bi2O3)(1-x-y)(Sm2O3)(x)(Yb2O3)(y) (x=0.01, y=0.11 synthesized at 700, 750, and 800 degrees C) and (x=0.05, y=0.07 synthesized at 800 degrees C) have stable fluorite type face centered cubic (FCC) delta-phase. SEM images have shown the morphology of the stable samples. The conductivity and the operation temperature region of the samples have been determined from Arrhenius curves obtained from the FPPM measurements data and they vary from 1.83 to 9.95 x 10(-1) S cm(-1). Moreover, activation energy of the samples have been calculated by means of Arrhenius curves of the samples and relationships between them and the conductivity of the samples have been investigated in detail. The results obtained from XRD and FPPM measurements were confirmed by the DTA measurements. (C) 2016 Elsevier B.V. All rights reserved.
dc.description.sponsorshipNigde University Research Projects Unit [FEB 2011/04]
dc.description.sponsorshipThis work was financially supported by Nigde University Research Projects Unit under the grant no. FEB 2011/04.
dc.identifier.doi10.1016/j.physb.2016.02.031
dc.identifier.endpage44
dc.identifier.issn0921-4526
dc.identifier.issn1873-2135
dc.identifier.scopus2-s2.0-84978518654
dc.identifier.scopusqualityQ2
dc.identifier.startpage39
dc.identifier.urihttps://dx.doi.org/10.1016/j.physb.2016.02.031
dc.identifier.urihttps://hdl.handle.net/11480/3652
dc.identifier.volume489
dc.identifier.wosWOS:000373092100007
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE BV
dc.relation.ispartofPHYSICA B-CONDENSED MATTER
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSolid state ceramic technique
dc.subjectActivation energy
dc.subjectConductivity
dc.subjectArrhenius
dc.subjectIonic conductivity
dc.titleEffect of concentration of Sm2O3 and Yb2O3 and synthesizing temperature on electrical and crystal structure of (Bi2O3)(1-x-y)(Sm2O3)(x)(Yb2O3)(y) electrolytes fabricated for IT-SOFCs
dc.typeArticle

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