Consistent Interpretation of Isotope and Chemical Oxygen Exchange Relaxation Kinetics in SrFe0.85Mo0.15O3−δ Ferrite Научная публикация
| Журнал |
PCCP: Physical Chemistry Chemical Physics
ISSN: 1463-9076 , E-ISSN: 1463-9084 |
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| Вых. Данные | Год: 2024, Том: 26, Номер: 14, Страницы: 10589-10598 Страниц : 10 DOI: 10.1039/d3cp05441a | ||||
| Ключевые слова | oxide fuel-cells; surface exchange; transport properties; electrical-conductivity; defect chemistry; bulk diffusion; permeation; perovskite; membranes; nonstoichiometry | ||||
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Реферат:
This paper is devoted to the study of phase composition and kinetic and thermodynamic characteristics of Mo-doped strontium ferrite SrFe0.85Mo0.15O3−δ (SFM15) under oxygen-conducting membrane working conditions. Single-phase SFM15 with a cubic Pm[3 with combining macron]m structure was synthesized using a ceramic method. It was shown that the molybdenum introduction stabilizes the perovskite cubic structure over a wide range of oxygen pressures and temperatures, preventing the bulk phase transition at high temperatures. Oxygen exchange constants, diffusion coefficients and activation energy of oxygen exchange were obtained using oxygen relaxation and isotopic exchange techniques, and the obtained values are consistent with known literature data. It was shown that the surface reaction rates obtained using chemical and tracer relaxation methods are quantitatively comparable with each other, despite significantly different experimental conditions. This result not only confirms the reliability of the data obtained by independent methods, but also allows one to expand the area of physical conditions for studying the kinetics of oxygen transfer where another method has technical or methodological limitations.
Библиографическая ссылка:
Arapova M.
, Chizhik S.
, Bragina O.
, Guskov R.
, Sobolev V.
, Nemudry A.
Consistent Interpretation of Isotope and Chemical Oxygen Exchange Relaxation Kinetics in SrFe0.85Mo0.15O3−δ Ferrite
PCCP: Physical Chemistry Chemical Physics. 2024. V.26. N14. P.10589-10598. DOI: 10.1039/d3cp05441a WOS Scopus РИНЦ CAPlus PMID OpenAlex
Consistent Interpretation of Isotope and Chemical Oxygen Exchange Relaxation Kinetics in SrFe0.85Mo0.15O3−δ Ferrite
PCCP: Physical Chemistry Chemical Physics. 2024. V.26. N14. P.10589-10598. DOI: 10.1039/d3cp05441a WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
| Поступила в редакцию: | 9 нояб. 2023 г. |
| Принята к публикации: | 1 мар. 2024 г. |
| Опубликована online: | 5 мар. 2024 г. |
| Опубликована в печати: | 14 апр. 2024 г. |
Идентификаторы БД:
| Web of science: | WOS:001187593100001 |
| Scopus: | 2-s2.0-85188531158 |
| РИНЦ: | 65643306 |
| Chemical Abstracts: | 2024:628460 |
| PMID (PubMed): | 38505976 |
| OpenAlex: | W4393107753 |
Цитирование в БД:
| БД | Цитирований |
|---|---|
| РИНЦ | 1 |