Highly Conductive Fe-Doped (La,Sr)(Ga,Mg)O3−δ Solid-State Membranes for Electrochemical Application
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Highly Conductive Fe-Doped (La,Sr)(Ga,Mg)O3−δ Solid-State Membranes for Electrochemical Application
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| Автор |
Gordeev, E.
Belyakov, S. Antonova, E. Osinkin, D. |
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| Тематика |
(LA,SR)(GA,MG)O3
CONDUCTIVITY DISTRIBUTION OF RELAXATION TIMES DRT LSGM OXYGEN REDUCTION REACTION SOLID OXIDE FUEL CELL SR2FE1.5MO0.5O6−Δ SYMMETRICAL ELECTRODES THERMAL EXPANSION ELECTROCHEMICAL ELECTRODES ELECTROLYTIC REDUCTION IONIC CONDUCTIVITY IRON SOLID ELECTROLYTES SOLID OXIDE FUEL CELLS (SOFC) (LA,SR)(GA,MG)O3 CONDUCTIVITY DISTRIBUTION OF RELAXATION TIME DRT FE-DOPED LSGM OXYGEN REDUCTION REACTION SOLID-OXIDE FUEL CELL SR2FE1.5MO0.5O6−Δ SYMMETRICAL ELECTRODES THERMAL EXPANSION |
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| Описание |
Membranes based on complex solid oxides with oxygen-ionic conductivity are widely used in high-temperature electrochemical devices such as fuel cells, electrolyzers, sensors, gas purifiers, etc. The performance of these devices depends on the oxygen-ionic conductivity value of the membrane. Highly conductive complex oxides with the overall composition of (La,Sr)(Ga,Mg)O3 have regained the attention of researchers in recent years due to the progress in the development of electrochemical devices with symmetrical electrodes. In this research, we studied how the introduction of iron cations into the gallium sublattice in (La,Sr)(Ga,Mg)O3 affects the fundamental properties of the oxides and the electrochemical performance of cells based on (La,Sr)(Ga,Fe,Mg)O3. It was found that the introduction of iron leads to an increase in the electrical conductivity and thermal expansion in an oxidizing atmosphere, while no such behavior was observed in a wet hydrogen atmosphere. The introduction of iron into a (La,Sr)(Ga,Mg)O3 electrolyte leads to an increase in the electrochemical activity of Sr2Fe1.5Mo0.5O6−δ electrodes in contact with the electrolyte. Fuel cell studies have shown that, in the case of a 550 µm-thick Fe-doped (La,Sr)(Ga,Mg)O3 supporting electrolyte (Fe content 10 mol.%) and symmetrical Sr2Fe1.5Mo0.5O6−δ electrodes, the cell exhibits a power density of more than 600 mW/cm2 at 800 °C. © 2023 by the authors.
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| Дата |
2024-04-05T16:22:41Z
2024-04-05T16:22:41Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Gordeev, E, Belyakov, S, Antonova, E & Osinkin, D 2023, 'Highly Conductive Fe-Doped (La,Sr)(Ga,Mg)O3−δ Solid-State Membranes for Electrochemical Application', Membranes, Том. 13, № 5, 502. https://doi.org/10.3390/membranes13050502
Gordeev, E., Belyakov, S., Antonova, E., & Osinkin, D. (2023). Highly Conductive Fe-Doped (La,Sr)(Ga,Mg)O3−δ Solid-State Membranes for Electrochemical Application. Membranes, 13(5), [502]. https://doi.org/10.3390/membranes13050502 2077-0375 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160208787&doi=10.3390%2fmembranes13050502&partnerID=40&md5=bd8baf22bb4abfb0f8ec024b926d1816 https://www.mdpi.com/2077-0375/13/5/502/pdf?version=1683707750 http://elar.urfu.ru/handle/10995/130502 10.3390/membranes13050502 85160208787 000996844000001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Membranes
Membranes |
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