Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells

Handle URI:
http://hdl.handle.net/10754/594240
Title:
Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells
Authors:
Stojmenović, M.; Zunic, Milan ( 0000-0002-0416-805X ) ; Gulicovski, J.; Bajuk-Bogdanović, D.; Holclajtner-Antunović, I.; Dodevski, V.; Mentus, S.
Abstract:
The solid solutions of CeO2 with one or more rare-earth oxides among Yb2O3, Sm2O3, and Gd2O3 are synthesized by either modified glycine nitrate procedure (MGNP) or self-propagating reaction at room temperature (SPRT). The overall mole fraction of rare-earth oxide dopants was x = 0.2. The characterization was committed by XRPD, TEM, BET, and Raman Spectroscopy methods. According to XRPD and Raman spectroscopy, the obtained products presented the single-phase solid solutions with basic fluorite-type CeO2 structure, regardless on the number and the concentration of dopants. Both XRPD and TEM analysis evidenced the nanometer particle dimensions. The defect model was applied to calculate lattice parameters of single-, co-, and multi-doped solids. The sintering of the sample nanopowders was performed at 1550 °C, in air atmosphere. The sintered samples were characterized by XRPD, SEM, and complex impedance methods. The sintering did not affect the concentration ratios of the constituents. The highest conductivity at 700 °C amounting to 2.14 × 10−2 and 1.92 × 10−2 Ω−1 cm−1 was measured for the sample Ce0.8Sm0.08Gd0.12O2−δ, synthesized by SPRT and MGNP methods, respectively. The corresponding activation energies of conductivity, measured in the temperature range 500–700 °C, amounted to 0.24 and 0.23 eV.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Stojmenović M, Žunić M, Gulicovski J, Bajuk-Bogdanović D, Holclajtner-Antunović I, et al. (2015) Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells. Journal of Materials Science 50: 3781–3794. Available: http://dx.doi.org/10.1007/s10853-015-8943-y.
Publisher:
Springer Nature
Journal:
Journal of Materials Science
Issue Date:
11-Mar-2015
DOI:
10.1007/s10853-015-8943-y
Type:
Article
ISSN:
0022-2461; 1573-4803
Sponsors:
This work has been supported by the Ministry of Education and Science of Serbia (project number: III 45012, III 45014 and III 45007).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorStojmenović, M.en
dc.contributor.authorZunic, Milanen
dc.contributor.authorGulicovski, J.en
dc.contributor.authorBajuk-Bogdanović, D.en
dc.contributor.authorHolclajtner-Antunović, I.en
dc.contributor.authorDodevski, V.en
dc.contributor.authorMentus, S.en
dc.date.accessioned2016-01-19T14:44:09Zen
dc.date.available2016-01-19T14:44:09Zen
dc.date.issued2015-03-11en
dc.identifier.citationStojmenović M, Žunić M, Gulicovski J, Bajuk-Bogdanović D, Holclajtner-Antunović I, et al. (2015) Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells. Journal of Materials Science 50: 3781–3794. Available: http://dx.doi.org/10.1007/s10853-015-8943-y.en
dc.identifier.issn0022-2461en
dc.identifier.issn1573-4803en
dc.identifier.doi10.1007/s10853-015-8943-yen
dc.identifier.urihttp://hdl.handle.net/10754/594240en
dc.description.abstractThe solid solutions of CeO2 with one or more rare-earth oxides among Yb2O3, Sm2O3, and Gd2O3 are synthesized by either modified glycine nitrate procedure (MGNP) or self-propagating reaction at room temperature (SPRT). The overall mole fraction of rare-earth oxide dopants was x = 0.2. The characterization was committed by XRPD, TEM, BET, and Raman Spectroscopy methods. According to XRPD and Raman spectroscopy, the obtained products presented the single-phase solid solutions with basic fluorite-type CeO2 structure, regardless on the number and the concentration of dopants. Both XRPD and TEM analysis evidenced the nanometer particle dimensions. The defect model was applied to calculate lattice parameters of single-, co-, and multi-doped solids. The sintering of the sample nanopowders was performed at 1550 °C, in air atmosphere. The sintered samples were characterized by XRPD, SEM, and complex impedance methods. The sintering did not affect the concentration ratios of the constituents. The highest conductivity at 700 °C amounting to 2.14 × 10−2 and 1.92 × 10−2 Ω−1 cm−1 was measured for the sample Ce0.8Sm0.08Gd0.12O2−δ, synthesized by SPRT and MGNP methods, respectively. The corresponding activation energies of conductivity, measured in the temperature range 500–700 °C, amounted to 0.24 and 0.23 eV.en
dc.description.sponsorshipThis work has been supported by the Ministry of Education and Science of Serbia (project number: III 45012, III 45014 and III 45007).en
dc.publisherSpringer Natureen
dc.titleStructural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cellsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Materials Scienceen
dc.contributor.institutionInstitute of Nuclear Sciences “Vinča”, Belgrade University of Belgrade, Mihaila Petrovića Alasa 12-14Vinča, Serbiaen
dc.contributor.institutionFaculty of Physical Chemistry, University of Belgrade, Studenski trg 12-16Belgrade, Serbiaen
dc.contributor.institutionSerbian Academy of Science and Arts, Knez Mihajlova 35Belgrade, Serbiaen
kaust.authorZunic, Milanen
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