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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
Вых. Данные Год: 2018, Том: 148, Номер: 9, Страницы: 2839-2847 Страниц : 9 DOI: 10.1007/s10562-018-2456-7
Авторы Porotnikova Natalia M. 1,2 , Eremin Vadim A. 1,2 , Farlenkov Andrey S. 1,2 , Kurumchin Edhem Kh. 1 , Sherstobitova Elena A. 1 , Kochubey Dmitry I. 3 , Ananyev Maxim V. 1,2
Организации
1 Institute of High Temperature Electrochemistry, Yekaterinburg, Russia
2 Ural Federal University named after the First President of Russia B.N. Yeltsin, Yekaterinburg, Russia
3 Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
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 CAPlus OpenAlex Sciact
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
Sciact: 23550
Цитирование в БД:
БД Цитирований
Scopus 21
OpenAlex 20
Альметрики: