Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC
Нема приказа
Аутори
Stojmenović, MarijaBošković, Snežana B.
Zunic, M.
Babić, Biljana M.
Matović, Branko
Bajuk-Bogdanović, Danica V.
Mentus, Slavko V.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A series of four different powders ceria doped Ce1-xErxO2-delta (0.05 LT = x LT = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials.... The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C. (C) 2015 Elsevier B.V. All rights reserved.
Кључне речи:
X-ray scattering / Raman spectroscopy / Electron microscopy (TEM and SEM) / Sintering / Ceramics / OxidesИзвор:
Materials Chemistry and Physics, 2015, 153, 422-431Финансирање / 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)
- A. von Humboldt Foundation
DOI: 10.1016/j.matchemphys.2015.01.036
ISSN: 0254-0584; 1879-3312
WoS: 000349505700054
Scopus: 2-s2.0-84922338096
Колекције
Институција/група
VinčaTY - JOUR AU - Stojmenović, Marija AU - Bošković, Snežana B. AU - Zunic, M. AU - Babić, Biljana M. AU - Matović, Branko AU - Bajuk-Bogdanović, Danica V. AU - Mentus, Slavko V. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/400 AB - A series of four different powders ceria doped Ce1-xErxO2-delta (0.05 LT = x LT = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials. The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C. (C) 2015 Elsevier B.V. All rights reserved. T2 - Materials Chemistry and Physics T1 - Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC VL - 153 SP - 422 EP - 431 DO - 10.1016/j.matchemphys.2015.01.036 ER -
@article{ author = "Stojmenović, Marija and Bošković, Snežana B. and Zunic, M. and Babić, Biljana M. and Matović, Branko and Bajuk-Bogdanović, Danica V. and Mentus, Slavko V.", year = "2015", abstract = "A series of four different powders ceria doped Ce1-xErxO2-delta (0.05 LT = x LT = 0.20) were synthesized by applying self-propagating reaction at room temperature (SPRT method). SPRT procedure is based on the self-propagating room temperature reaction between metal nitrates and sodium hydroxide, wherein the reaction is spontaneous and terminates extremely fast. The method is known to assure very precise stoichiometry of the final product in comparison with a tailored composition. XRPD, Raman spectroscopy, TEM and BET measurements were used to characterize the nanopowders at room temperature. It was shown that all obtained powders were single phase solid solutions with a fluorite-type crystal structure and all powder particles have nanometric size (about 3-4 nm). Densification was performed at 1550 degrees C, in an air atmosphere for 2 h. XRPD, SEM and complex impedance method measurements were carried out on sintered samples. Single phase form was evidenced for each sintered materials. The best value of conductivity at 700 degrees C amounted to 1.10 x 10(-2) Omega(-1) cm(-1) for Ce0.85Er0.O-3(2-delta) sample. Corresponding activation energies of conductivity amounted to 0.28 eV in the temperature range 500-700 degrees C. (C) 2015 Elsevier B.V. All rights reserved.", journal = "Materials Chemistry and Physics", title = "Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC", volume = "153", pages = "422-431", doi = "10.1016/j.matchemphys.2015.01.036" }
Stojmenović, M., Bošković, S. B., Zunic, M., Babić, B. M., Matović, B., Bajuk-Bogdanović, D. V.,& Mentus, S. V.. (2015). Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC. in Materials Chemistry and Physics, 153, 422-431. https://doi.org/10.1016/j.matchemphys.2015.01.036
Stojmenović M, Bošković SB, Zunic M, Babić BM, Matović B, Bajuk-Bogdanović DV, Mentus SV. Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC. in Materials Chemistry and Physics. 2015;153:422-431. doi:10.1016/j.matchemphys.2015.01.036 .
Stojmenović, Marija, Bošković, Snežana B., Zunic, M., Babić, Biljana M., Matović, Branko, Bajuk-Bogdanović, Danica V., Mentus, Slavko V., "Studies on structural, morphological and electrical properties of Ce1-xErxO2-delta (x=0.05-0.20) as solid electrolyte for IT - SOFC" in Materials Chemistry and Physics, 153 (2015):422-431, https://doi.org/10.1016/j.matchemphys.2015.01.036 . .