Synthesis and characterization of (Bi2O3)1−x−y−z(Gd2O3)x (Sm2O3)y(Eu2O3)z quaternary solid solutions for solid oxide fuel cell

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dc.contributor.author Mehmet, Arı
dc.contributor.author Murat, Balcı
dc.contributor.author Yasin, Polat
dc.date.accessioned 2021-05-18T12:14:15Z
dc.date.available 2021-05-18T12:14:15Z
dc.date.issued 2018-10-01
dc.identifier.citation Science Citation Index Expanded tr_TR
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0577907318302752?via%3Dihub
dc.identifier.uri http://hdl.handle.net/20.500.11787/1471
dc.description.abstract Sm2O3, Gd2O3, Eu2O3 triple-doped Bi2O3 based quaternary solid solutions were synthesized as a candidate electrolyte material using the solid-state reaction technique. The structural, thermal and electrical conductivity features of the ceramic samples were examined and compared by using X-ray powder diffraction (XRD), thermal gravimetry/differantial thermal analysis (TG/ DTA) and the four-point probe technique (4PPT). The result of XRD measurements indicated that the (Bi2O3)(1−x−y−z)(Gd2O3)x(Sm2O3)y(Eu2O3)z (x = 10/y = 10/z = 5, 15, 20 mol % and x = 10/y = 5, 10, 15, 20/z = 10 mol %) samples have a stable face-centered cubic δ-phase and mixed phase crystallographic structure. The phase stability was also checked by the DTA eva luations results. The temperature dependent electrical conductivity measurements showed that the highest electrical conductivity was observed for the sample of the (Bi2O3)0.75(Gd2O3)0.10(Sm2O3)0.05(Eu2O3)0.10 system which has a stable and δ-phase was found as 6.67 × 10−3 (Ω cm)−1 at 650 °C. This sample can be used as an electrolyte material in the solid oxide fuel cells (SOFCs) which is possible to operate at intermediate temperature ranges. The activation energy was also calculated at a low temperature range (350–650 °C) and high temperature range (above 650 °C). The values for the samples vary from 0.63 eV to 1.08 eV at low temperature and at high temperature they vary from 0.43 eV to 0.75 eV. tr_TR
dc.language.iso eng tr_TR
dc.publisher Elsevier tr_TR
dc.relation.isversionof j.cjph.2018.10.001 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Solid oxide fuel cell (SOFC) Quaternary solid solutions Solid-state reaction Electrical conductivity Activation energy tr_TR
dc.title Synthesis and characterization of (Bi2O3)1−x−y−z(Gd2O3)x (Sm2O3)y(Eu2O3)z quaternary solid solutions for solid oxide fuel cell tr_TR
dc.type article tr_TR
dc.relation.journal Chinese Journal of Physics tr_TR
dc.contributor.department BİLİM VE TEKNOLOJİ UYGULAMA VE ARAŞTIRMA MERKEZİ tr_TR
dc.contributor.authorID 253156 tr_TR
dc.identifier.volume 56 tr_TR
dc.identifier.startpage 2958 tr_TR
dc.identifier.endpage 2966 tr_TR


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