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http://elar.urfu.ru/handle/10995/130613
Название: | Sintering Aid Strategy for Promoting Oxygen Reduction Reaction on High-Performance Double-Layer LaNi0.6Fe0.4O3–δ Composite Electrode for Devices Based on Solid-State Membranes |
Авторы: | Osinkin, D. Bogdanovich, N. |
Дата публикации: | 2023 |
Издатель: | MDPI |
Библиографическое описание: | Osinkin, D & Bogdanovich, N 2023, 'Sintering Aid Strategy for Promoting Oxygen Reduction Reaction on High-Performance Double-Layer LaNi0.6Fe0.4O3–δ Composite Electrode for Devices Based on Solid-State Membranes', Membranes, Том. 13, № 6, 603. https://doi.org/10.3390/membranes13060603 Osinkin, D., & Bogdanovich, N. (2023). Sintering Aid Strategy for Promoting Oxygen Reduction Reaction on High-Performance Double-Layer LaNi0.6Fe0.4O3–δ Composite Electrode for Devices Based on Solid-State Membranes. Membranes, 13(6), [603]. https://doi.org/10.3390/membranes13060603 |
Аннотация: | Strontium and cobalt-free LaNi0.6Fe0.4O3–δ is considered one of the most promising electrodes for solid-state electrochemical devices. LaNi0.6Fe0.4O3–δ has high electrical conductivity, a suitable thermal expansion coefficient, satisfactory tolerance to chromium poisoning, and chemical compatibility with zirconia-based electrolytes. The disadvantage of LaNi0.6Fe0.4O3–δ is its low oxygen-ion conductivity. In order to increase the oxygen-ion conductivity, a complex oxide based on a doped ceria is added to the LaNi0.6Fe0.4O3–δ. However, this leads to a decrease in the conductivity of the electrode. In this case, a two-layer electrode with a functional composite layer and a collector layer with the addition of sintering additives should be used. In this study, the effect of sintering additives (Bi0.75Y0.25O2–δ and CuO) in the collector layer on the performance of LaNi0.6Fe0.4O3–δ-based highly active electrodes in contact with the most common solid-state membranes (Zr0.84Sc0.16O2–δ, Ce0.8Sm0.2O2–δ, La0.85Sr0.15Ga0.85Mg0.15O3–δ, La10(SiO4)6O3–δ, and BaCe0.89Gd0.1Cu0.01O3–δ) was investigated. It was shown that LaNi0.6Fe0.4O3–δ has good chemical compatibility with the abovementioned membranes. The best electrochemical activity (polarization resistance about 0.02 Ohm cm2 at 800 °C) was obtained for the electrode with 5 wt.% Bi0.75Y0.25O1.5 and 2 wt.% CuO in the collector layer. © 2023 by the authors. |
Ключевые слова: | COMPLEX OXIDE DISTRIBUTION OF RELAXATION TIMES DRT ELECTRODE LANI0.6FE0.4O3–Δ LNF MEMBRANES POLARIZATION RESISTANCE SINTERING AIDS SOFC BARIUM COMPOUNDS BISMUTH COMPOUNDS CERIUM OXIDE COMPOSITE MEMBRANES COPPER OXIDES ELECTROLYTIC REDUCTION GALLIUM COMPOUNDS IRON COMPOUNDS LANTHANUM COMPOUNDS NICKEL COMPOUNDS OXYGEN SILICON COMPOUNDS SINTERING SOLID ELECTROLYTES SOLID OXIDE FUEL CELLS (SOFC) STRONTIUM COMPOUNDS THERMAL EXPANSION YTTRIA STABILIZED ZIRCONIA CHEMICAL COMPATIBILITY COMPLEX OXIDES DISTRIBUTION OF RELAXATION TIME DRT LANI0.6FE0.4O3–Δ LNF PERFORMANCE POLARIZATION RESISTANCES SINTERING AID SOLID-STATE MEMBRANES POLARIZATION |
URI: | http://elar.urfu.ru/handle/10995/130613 |
Условия доступа: | info:eu-repo/semantics/openAccess cc-by |
Текст лицензии: | https://creativecommons.org/licenses/by/4.0/ |
Идентификатор SCOPUS: | 85164004346 |
Идентификатор WOS: | 001021035300001 |
Идентификатор PURE: | 41591434 |
ISSN: | 2077-0375 |
DOI: | 10.3390/membranes13060603 |
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-s2.0-85164004346.pdf | 3,28 MB | Adobe PDF | Просмотреть/Открыть |
Лицензия на ресурс: Лицензия Creative Commons