High-Temperature Transport Properties of BaSn1−xScxO3−δ Ceramic Materials as Promising Electrolytes for Protonic Ceramic Fuel Cells Научная публикация
| Журнал |
Journal of Advanced Ceramics
ISSN: 2226-4108 , E-ISSN: 2227-8508 |
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| Вых. Данные | Год: 2022, Том: 11, Номер: 7, Страницы: 1131-1143 Страниц : 13 DOI: 10.1007/s40145-022-0599-x | ||||||||
| Ключевые слова | BaSnO3; protonic ceramic fuel cells (PCFCs); proton transport; perovskite; hydration; electronic conductivity | ||||||||
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Реферат:
Protonic ceramic fuel cells (PCFCs) offer a convenient means for electrochemical conversion of chemical energy into electricity at intermediate temperatures with very high efficiency. Although BaCeO3- and BaZrO3-based complex oxides have been positioned as the most promising PCFC electrolytes, the design of new protonic conductors with improved properties is of paramount importance. Within the present work, we studied transport properties of scandium-doped barium stannate (Sc-doped BaSnO3). Our analysis included the fabrication of porous and dense BaSn1−xScxO3−δ ceramic materials (0 ⩽ x ⩽ 0.37), as well as a comprehensive analysis of their total, ionic, and electronic conductivities across all the experimental conditions realized under the PCFC operation: both air and hydrogen atmospheres with various water vapor partial pressures (p(H2O)), and a temperature range of 500–900 °C. This work reports on electrolyte domain boundaries of the undoped and doped BaSnO3 for the first time, revealing that pure BaSnO3 exhibits mixed ionic-electronic conduction behavior under both oxidizing and reducing conditions, while the Sc-doping results in the gradual improvement of ionic (including protonic) conductivity, extending the electrolyte domain boundaries towards reduced atmospheres. This latter property makes the heavily-doped BaSnO3 representatives attractive for PCFC applications.
Библиографическая ссылка:
Zvonareva I.A.
, Mineev A.M.
, Tarasova N.A.
, Fu X-Z.
, Medvedev D.A.
High-Temperature Transport Properties of BaSn1−xScxO3−δ Ceramic Materials as Promising Electrolytes for Protonic Ceramic Fuel Cells
Journal of Advanced Ceramics. 2022. V.11. N7. P.1131-1143. DOI: 10.1007/s40145-022-0599-x WOS Scopus РИНЦ CAPlusCA OpenAlex
High-Temperature Transport Properties of BaSn1−xScxO3−δ Ceramic Materials as Promising Electrolytes for Protonic Ceramic Fuel Cells
Journal of Advanced Ceramics. 2022. V.11. N7. P.1131-1143. DOI: 10.1007/s40145-022-0599-x WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 13 мар. 2022 г. |
| Принята к публикации: | 13 апр. 2022 г. |
| Опубликована в печати: | 2 июл. 2022 г. |
| Опубликована online: | 2 июл. 2022 г. |
Идентификаторы БД:
| Web of science: | WOS:000820245000007 |
| Scopus: | 2-s2.0-85133333305 |
| РИНЦ: | 49152368 |
| Chemical Abstracts: | 2022:1706635 |
| Chemical Abstracts (print): | 180:197086 |
| OpenAlex: | W4283782163 |