Charge Transfer and Defect Structure in BaCeO3
- Авторы: Gorelov V.P.1, Balakireva V.B.1, Kuz’min A.V.1,2
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Учреждения:
- Institute of High-Temperature Electrochemistry, Ural Branch
- Ural Federal University Named after Eltzin
- Выпуск: Том 63, № 7 (2018)
- Страницы: 930-937
- Раздел: Physical Methods of Investigation
- URL: https://journals.rcsi.science/0036-0236/article/view/168846
- DOI: https://doi.org/10.1134/S0036023618070070
- ID: 168846
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Аннотация
Electrical conductivity (at 460–990°С) and ion and proton transference numbers (at 550–950°С) of nominally undoped BaCeO3 have been studied as dependent on temperature, pO2 (2.1 × 10–4 to 10–15 Pa), and pН2O (40–2340 Pa). For determining the defect model, small additives of aliovalent dopants Nd3+ (up to 1 at %) and Ta5+ (up to 0.5 at %) were used. The effect of cationic nonstoichiometry of barium cerate on the electrical conductivity and reaction with the gas phase has been considered. Charge transfer in ВаСеО3 is explained using the model of defect formation in the reaction of ВаСеО3 with the gas phase.
Об авторах
V. Gorelov
Institute of High-Temperature Electrochemistry, Ural Branch
Автор, ответственный за переписку.
Email: gorelov@ihte.uran.ru
Россия, Yekaterinburg, 620990
V. Balakireva
Institute of High-Temperature Electrochemistry, Ural Branch
Email: gorelov@ihte.uran.ru
Россия, Yekaterinburg, 620990
A. Kuz’min
Institute of High-Temperature Electrochemistry, Ural Branch; Ural Federal University Named after Eltzin
Email: gorelov@ihte.uran.ru
Россия, Yekaterinburg, 620990; Yekaterinburg, 620002
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