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http://elar.urfu.ru/handle/10995/130375
Название: | Transport Properties of Intergrowth Structures Ba5In2Al2ZrO13 and Ba7In6Al2O19 |
Авторы: | Andreev, R. Animitsa, I. |
Дата публикации: | 2023 |
Издатель: | MDPI |
Библиографическое описание: | Andreev, R & Animitsa, I 2023, 'Transport Properties of Intergrowth Structures Ba5In2Al2ZrO13 and Ba7In6Al2O19', Applied Sciences, Том. 13, № 6, 3978. https://doi.org/10.3390/app13063978 Andreev, R., & Animitsa, I. (2023). Transport Properties of Intergrowth Structures Ba5In2Al2ZrO13 and Ba7In6Al2O19. Applied Sciences, 13(6), [3978]. https://doi.org/10.3390/app13063978 |
Аннотация: | The development of solid oxide fuel cells operating at medium temperatures (500–700 °C and even lower) requires the search for proton conductors based on complex oxides that would have a wide range of required properties. This task stimulates the search for new promising phases with proton conductivity. The new hexagonal perovskite-related compound Ba7In6Al2O19 was synthesized by the solid-state method. The phase was characterized by powder X-ray diffraction, thermogravimetric analysis, FT-IR spectroscopy, and impedance spectroscopy (in a wide range of temperatures, and partial pressures of oxygen at various atmospheric humidities). The investigated phase had a hexagonal structure with a space group of P63/mmc; the lattice parameters for Ba7In6Al2O19 are a = 5.921(2) Å, c = 37.717(4) Å. The phase is capable of reversible hydration and incorporates up to 0.15 mol H2O. IR-data confirmed that protons in the hydrated compound are presented in the form of OH–-groups. Electrical conductivity data showed that the sample exhibited dominant oxygen-ion conductivity below 500 °C in dry air and dominant proton conductivity below 600 °C in wet air. © 2023 by the authors. |
Ключевые слова: | HEXAGONAL PEROVSKITES HYDRATION PROTON CONDUCTORS TRANSPORT PROPERTIES |
URI: | http://elar.urfu.ru/handle/10995/130375 |
Условия доступа: | info:eu-repo/semantics/openAccess cc-by |
Текст лицензии: | https://creativecommons.org/licenses/by/4.0/ |
Идентификатор SCOPUS: | 85152022607 |
Идентификатор WOS: | 000957688800001 |
Идентификатор PURE: | 37090016 |
ISSN: | 2076-3417 |
DOI: | 10.3390/app13063978 |
Сведения о поддержке: | Russian Science Foundation, RSF This research was supported by the Russian Science Foundation and Government of Sverdlovsk region, Joint Grant 22-23-20003 https://rscf.ru/en/project/22-23-20003/ (accessed on 2 March 2022). |
Карточка проекта РНФ: | 22-23-20003 |
Располагается в коллекциях: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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Файл | Описание | Размер | Формат | |
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2-s2.0-85152022607.pdf | 4,15 MB | Adobe PDF | Просмотреть/Открыть |
Лицензия на ресурс: Лицензия Creative Commons