Phase stability and electric conductivity of Eu2O3-Tb4O7 co-doped Bi2O3 electrolyte

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dc.contributor.authorErmis, Ismail
dc.contributor.authorAri, Mehmet
dc.contributor.authorAcer, Semra Durmus
dc.contributor.authorDagdemir, Yilmaz
dc.date.accessioned2025-03-23T19:41:25Z
dc.date.available2025-03-23T19:41:25Z
dc.date.issued2015
dc.departmentSinop Üniversitesi
dc.description.abstractIn this study, eight different samples of Tb4O7 and Eu2O3 co-doped Bi2O3 were prepared by solid-state synthesis techniques. (Bi2O3)(1-x-y)(Tb4O7)(x)(Eu2O3)(y) (x = 5,10; y = 5, 10, 15, 20 mol %) ternary systems were investigated by using X-ray powder diffraction (XRD), differential thermal analysis/thermal gravimetry (DTA/TG), and four-point probe techniques (4PPT). Effect of concentration of doping elements on the temperature and electrical conductivity was investigated. All samples were evaluated by calculating activation energies and average crystal sizes. XRD measurements show that five samples have a single phase (phase) structure. According to electrical conductivity measurements, the conductivity increases with increasing temperature but decreases with increasing amount of Eu2O3. The highest ionic conductivity was measured as 7.28 x 10(-1) (ohm.cm)(-1) for the (Bi2O3)(0.90)(Tb4O7)(0.05) (Eu2O3)(0.05) sample at 850 degrees C and the lowest activation energy was measured as 0.64 eV for (Bi2O3)(0.90)(Tb4O7)(0.05) (Eu2O3)(0.05). Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipErciyes University's Research Fund [FBD-11-3523]
dc.description.sponsorshipThe authors would like to thank Erciyes University's Research Fund for its financial support (Project no: FBD-11-3523).
dc.identifier.doi10.1016/j.ijhydene.2015.05.098
dc.identifier.endpage9490
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue30
dc.identifier.scopus2-s2.0-84937522535
dc.identifier.scopusqualityQ1
dc.identifier.startpage9485
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2015.05.098
dc.identifier.urihttps://hdl.handle.net/11486/6579
dc.identifier.volume40
dc.identifier.wosWOS:000358811000050
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectSolid oxide fuel cell (SOFC)
dc.subjectCeramic electrolyte
dc.subjectX-ray diffraction
dc.subject4-point probe technique
dc.titlePhase stability and electric conductivity of Eu2O3-Tb4O7 co-doped Bi2O3 electrolyte
dc.typeArticle

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