Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells
Само за регистроване кориснике
2015
Аутори
Stojmenović, MarijaZunic, M.
Gulicovski, Jelena J.
Bajuk-Bogdanović, Danica V.
Holclajtner-Antunović, Ivanka D.
Dodevski, Vladimir
Mentus, Slavko V.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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 A degrees 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 constitu...ents. The highest conductivity at 700 A degrees C amounting to 2.14 x 10(-2) and 1.92 x 10(-2) Omega(-1) cm(-1) was measured for the sample Ce0.8Sm0.08Gd0.12O2-delta, synthesized by SPRT and MGNP methods, respectively. The corresponding activation energies of conductivity, measured in the temperature range 500-700 A degrees C, amounted to 0.24 and 0.23 eV.
Извор:
Journal of Materials Science, 2015, 50, 10, 3781-3794Финансирање / пројекти:
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45012)
- Литијум-јон батерије и горивне ћелије-истраживање и развој (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45014)
- 0-3D наноструктуре за примену у електроници и обновљивим изворима енергије: синтеза, карактеризација и процесирање (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45007)
DOI: 10.1007/s10853-015-8943-y
ISSN: 0022-2461; 1573-4803
WoS: 000351293700025
Scopus: 2-s2.0-84924851234
Колекције
Институција/група
VinčaTY - JOUR AU - Stojmenović, Marija AU - Zunic, M. AU - Gulicovski, Jelena J. AU - Bajuk-Bogdanović, Danica V. AU - Holclajtner-Antunović, Ivanka D. AU - Dodevski, Vladimir AU - Mentus, Slavko V. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/450 AB - 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 A degrees 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 A degrees C amounting to 2.14 x 10(-2) and 1.92 x 10(-2) Omega(-1) cm(-1) was measured for the sample Ce0.8Sm0.08Gd0.12O2-delta, synthesized by SPRT and MGNP methods, respectively. The corresponding activation energies of conductivity, measured in the temperature range 500-700 A degrees C, amounted to 0.24 and 0.23 eV. T2 - Journal of Materials Science T1 - Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells VL - 50 IS - 10 SP - 3781 EP - 3794 DO - 10.1007/s10853-015-8943-y ER -
@article{ author = "Stojmenović, Marija and Zunic, M. and Gulicovski, Jelena J. and Bajuk-Bogdanović, Danica V. and Holclajtner-Antunović, Ivanka D. and Dodevski, Vladimir and Mentus, Slavko V.", year = "2015", 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 A degrees 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 A degrees C amounting to 2.14 x 10(-2) and 1.92 x 10(-2) Omega(-1) cm(-1) was measured for the sample Ce0.8Sm0.08Gd0.12O2-delta, synthesized by SPRT and MGNP methods, respectively. The corresponding activation energies of conductivity, measured in the temperature range 500-700 A degrees C, amounted to 0.24 and 0.23 eV.", journal = "Journal of Materials Science", title = "Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells", volume = "50", number = "10", pages = "3781-3794", doi = "10.1007/s10853-015-8943-y" }
Stojmenović, M., Zunic, M., Gulicovski, J. J., Bajuk-Bogdanović, D. V., Holclajtner-Antunović, I. D., Dodevski, V.,& Mentus, S. V.. (2015). Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells. in Journal of Materials Science, 50(10), 3781-3794. https://doi.org/10.1007/s10853-015-8943-y
Stojmenović M, Zunic M, Gulicovski JJ, Bajuk-Bogdanović DV, Holclajtner-Antunović ID, Dodevski V, Mentus SV. Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells. in Journal of Materials Science. 2015;50(10):3781-3794. doi:10.1007/s10853-015-8943-y .
Stojmenović, Marija, Zunic, M., Gulicovski, Jelena J., Bajuk-Bogdanović, Danica V., Holclajtner-Antunović, Ivanka D., Dodevski, Vladimir, Mentus, Slavko V., "Structural, morphological, and electrical properties of doped ceria as a solid electrolyte for intermediate-temperature solid oxide fuel cells" in Journal of Materials Science, 50, no. 10 (2015):3781-3794, https://doi.org/10.1007/s10853-015-8943-y . .