Effect of AO Segregation on Catalytical Activity of La0.7A0.3MnO3±δ (A = Ca, Sr, Ba) Regarding Oxygen Reduction Reaction Научная публикация
Журнал |
Catalysis Letters
ISSN: 1011-372X , E-ISSN: 1572-879X |
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Вых. Данные | Год: 2018, Том: 148, Номер: 9, Страницы: 2839-2847 Страниц : 9 DOI: 10.1007/s10562-018-2456-7 | ||||||
Ключевые слова | Catalysis; Oxygen reduction reaction; Kinetics; Cation segregation; Manganite | ||||||
Авторы |
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Организации |
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Информация о финансировании (4)
1 | Министерство образования и науки Российской Федерации | 02.A03.21.0006 |
2 | Российский научный фонд | 16-13-00053 |
3 | Совет по грантам Президента Российской Федерации | СП-2316.2018.1 |
4 | Совет по грантам Президента Российской Федерации | МД-6758.2018.3 |
Реферат:
Oxygen surface exchange kinetics of La0.7A0.3MnO3±δ has been studied by the isotope exchange method with gas phase equilibration using a static circulation experimental rig at the temperature of 850 °C and oxygen pressure of 1 kPa. Oxides of La0.7A0.3MnO3±δ with different dopant at one level of doping were considered. Rates of elementary acts of the oxygen exchange were found to change differently. So, the oxygen dissociative adsorption rate increased, the oxygen incorporation rate decreased, and the increase in the cation radius did not influence the interphase exchange rate. These trends are associated with the AO segregation processes at the surface and the appropriate mechanism of oxygen reduction is considered.
Библиографическая ссылка:
Porotnikova N.M.
, Eremin V.A.
, Farlenkov A.S.
, Kurumchin E.K.
, Sherstobitova E.A.
, Kochubey D.I.
, Ananyev M.V.
Effect of AO Segregation on Catalytical Activity of La0.7A0.3MnO3±δ (A = Ca, Sr, Ba) Regarding Oxygen Reduction Reaction
Catalysis Letters. 2018. V.148. N9. P.2839-2847. DOI: 10.1007/s10562-018-2456-7 WOS Scopus РИНЦ
Effect of AO Segregation on Catalytical Activity of La0.7A0.3MnO3±δ (A = Ca, Sr, Ba) Regarding Oxygen Reduction Reaction
Catalysis Letters. 2018. V.148. N9. P.2839-2847. DOI: 10.1007/s10562-018-2456-7 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 18 янв. 2018 г. |
Принята к публикации: | 11 июн. 2018 г. |
Опубликована online: | 20 июн. 2018 г. |
Опубликована в печати: | 1 сент. 2018 г. |
Идентификаторы БД:
Web of science | WOS:000443450900023 |
Scopus | 2-s2.0-85048738234 |
РИНЦ | 35713828 |
Chemical Abstracts | 2018:1192794 |
OpenAlex | W2809197915 |