Adjusting the electrolyte properties of BaCe0.9Y0.1O3–δ by co-doping
Аутори
Radojković, AleksandarŽunić, Milan
Savic, Slavica
Perać, Sanja
Vojisavljević, Katarina
Luković Golić, Danijela
Branković, Zorica
Branković, Goran
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Composition of BaCe0.9Y0.1O3-δ was changed by co-doping with 5 mole % of different cations (In3+, Zr4+ and Nb5+) to examine the influence of dopants on the electrolyte properties. The powder samples were synthesized by the citric-nitric autocombustion method. BaCe0.85Y0.1In0.05O3-δ was successfully sintered at 1400 °C for 5 h in air, while a complete sintering of the other materials was carried out at 1550 °C. This makes the doping with In a preferable method since sintering temperatures below 1500 °C can limit BaO evaporation. The presence of In and Nb caused a significant drop in the total conductivity (σ) of the ceramics at 700 °C in wet hydrogen, while the total conductivity of BaCe0.85Y0.1Zr0.05O3-δ was slightly lower than of BaCe0.9Y0.1O3-δ. The stability of the ceramics exposed to a 100 % CO2 atmosphere at 700 °C for 5 h was investigated by X-ray analysis.
BaCe0.85Y0.1In0.05O3-δ showed considerable stability under the aggressive conditions containing traces of secondary phases,... while the other samples were partially or significantly decomposed. By taking into account the factors that can influence the stability and conductivity, it was found that the dopant electronegativity had a
decisive role both in inhibiting the carbonation and in decreasing the total conductivity of the ceramics.
Кључне речи:
BaCeO3 / Electrolyte / Autocombustion / X-ray analysis / CarbonationИзвор:
5th Conference of the Serbian Society for Ceramic Materials, 2019, 131-Издавач:
- Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia
Финансирање / пројекти:
- info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS (-)
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Radojković, Aleksandar AU - Žunić, Milan AU - Savic, Slavica AU - Perać, Sanja AU - Vojisavljević, Katarina AU - Luković Golić, Danijela AU - Branković, Zorica AU - Branković, Goran PY - 2019 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2307 AB - Composition of BaCe0.9Y0.1O3-δ was changed by co-doping with 5 mole % of different cations (In3+, Zr4+ and Nb5+) to examine the influence of dopants on the electrolyte properties. The powder samples were synthesized by the citric-nitric autocombustion method. BaCe0.85Y0.1In0.05O3-δ was successfully sintered at 1400 °C for 5 h in air, while a complete sintering of the other materials was carried out at 1550 °C. This makes the doping with In a preferable method since sintering temperatures below 1500 °C can limit BaO evaporation. The presence of In and Nb caused a significant drop in the total conductivity (σ) of the ceramics at 700 °C in wet hydrogen, while the total conductivity of BaCe0.85Y0.1Zr0.05O3-δ was slightly lower than of BaCe0.9Y0.1O3-δ. The stability of the ceramics exposed to a 100 % CO2 atmosphere at 700 °C for 5 h was investigated by X-ray analysis. BaCe0.85Y0.1In0.05O3-δ showed considerable stability under the aggressive conditions containing traces of secondary phases, while the other samples were partially or significantly decomposed. By taking into account the factors that can influence the stability and conductivity, it was found that the dopant electronegativity had a decisive role both in inhibiting the carbonation and in decreasing the total conductivity of the ceramics. PB - Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia C3 - 5th Conference of the Serbian Society for Ceramic Materials T1 - Adjusting the electrolyte properties of BaCe0.9Y0.1O3–δ by co-doping SP - 131 UR - https://hdl.handle.net/21.15107/rcub_rimsi_2307 ER -
@conference{ author = "Radojković, Aleksandar and Žunić, Milan and Savic, Slavica and Perać, Sanja and Vojisavljević, Katarina and Luković Golić, Danijela and Branković, Zorica and Branković, Goran", year = "2019", abstract = "Composition of BaCe0.9Y0.1O3-δ was changed by co-doping with 5 mole % of different cations (In3+, Zr4+ and Nb5+) to examine the influence of dopants on the electrolyte properties. The powder samples were synthesized by the citric-nitric autocombustion method. BaCe0.85Y0.1In0.05O3-δ was successfully sintered at 1400 °C for 5 h in air, while a complete sintering of the other materials was carried out at 1550 °C. This makes the doping with In a preferable method since sintering temperatures below 1500 °C can limit BaO evaporation. The presence of In and Nb caused a significant drop in the total conductivity (σ) of the ceramics at 700 °C in wet hydrogen, while the total conductivity of BaCe0.85Y0.1Zr0.05O3-δ was slightly lower than of BaCe0.9Y0.1O3-δ. The stability of the ceramics exposed to a 100 % CO2 atmosphere at 700 °C for 5 h was investigated by X-ray analysis. BaCe0.85Y0.1In0.05O3-δ showed considerable stability under the aggressive conditions containing traces of secondary phases, while the other samples were partially or significantly decomposed. By taking into account the factors that can influence the stability and conductivity, it was found that the dopant electronegativity had a decisive role both in inhibiting the carbonation and in decreasing the total conductivity of the ceramics.", publisher = "Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia", journal = "5th Conference of the Serbian Society for Ceramic Materials", title = "Adjusting the electrolyte properties of BaCe0.9Y0.1O3–δ by co-doping", pages = "131", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2307" }
Radojković, A., Žunić, M., Savic, S., Perać, S., Vojisavljević, K., Luković Golić, D., Branković, Z.,& Branković, G.. (2019). Adjusting the electrolyte properties of BaCe0.9Y0.1O3–δ by co-doping. in 5th Conference of the Serbian Society for Ceramic Materials Institut za multidisciplinarna istraživanja Kneza Višeslava 1, 11000 Belgrade, Serbia., 131. https://hdl.handle.net/21.15107/rcub_rimsi_2307
Radojković A, Žunić M, Savic S, Perać S, Vojisavljević K, Luković Golić D, Branković Z, Branković G. Adjusting the electrolyte properties of BaCe0.9Y0.1O3–δ by co-doping. in 5th Conference of the Serbian Society for Ceramic Materials. 2019;:131. https://hdl.handle.net/21.15107/rcub_rimsi_2307 .
Radojković, Aleksandar, Žunić, Milan, Savic, Slavica, Perać, Sanja, Vojisavljević, Katarina, Luković Golić, Danijela, Branković, Zorica, Branković, Goran, "Adjusting the electrolyte properties of BaCe0.9Y0.1O3–δ by co-doping" in 5th Conference of the Serbian Society for Ceramic Materials (2019):131, https://hdl.handle.net/21.15107/rcub_rimsi_2307 .