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CuFeAl-Composite Catalysts of Oxidation of Gasification Products of Solid Fuels: In situ XAS and XRD Study Научная публикация

Конференция 17th International Conference on X-ray Absorption Fine Structure
22-27 июл. 2018 , Kraków
Журнал Radiation Physics and Chemistry
ISSN: 0969-806X , E-ISSN: 1879-0895
Вых. Данные Год: 2020, Том: 175, Номер: SI, Номер статьи : 108071, Страниц : 4 DOI: 10.1016/j.radphyschem.2018.11.025
Ключевые слова In situ XASIn situ XRDCuFeAl-composite catalystsCO oxidationCatalytic combustion
Авторы Saraev A.A. 1,2 , Tsapina A.M. 1 , Fedorov A.V. 2 , Trigub A.L. 3 , Bulavchenko O.A. 1,2 , Vinokurov Z.S. 1 , Zubavichus Ya.V. 1,3 , Kaichev V.V. 1,2
Организации
1 Boreskov Institute of Catalysis, Lavrentiev Ave., 5, 630090 Novosibirsk, Russia
2 Novosibirsk State University, Pirogova Str., 2, 630090 Novosibirsk, Russia
3 National Research Centre "Kurchatov Institute", Kurchatova sq. 1, 123182 Moscow, Russia

Информация о финансировании (1)

1 Российский научный фонд 17-73-20157

Реферат: The reduction of high-active FeAl and CuFeAl composite catalysts was investigated in situ by XRD and XAS in the temperature range between 100 and 600 °C. It was found that the fresh catalysts consist of Fe2O3 and Al2O3 phases only. The Al3+ cations partially dissolute in the Fe2O3 lattice. The addition of copper to the Fe-Al catalyst leads to formation of highly dispersed CuO nanoparticles and mixed oxide with a spinel-type crystalline structure similar to that of CuFe2O4. The low-temperature reduction of Cu2+ to Cu0 accelerates the Fe2O3 → Fe3O4 and FeO → Fe0 transformations. In the presence of oxygen we did not observe the reduction of Cu and Fe to the metallic state. This means that the oxidation of CO over FeAl and CuFeAl composite catalysts proceeds via a redox mechanism.
Библиографическая ссылка: Saraev A.A. , Tsapina A.M. , Fedorov A.V. , Trigub A.L. , Bulavchenko O.A. , Vinokurov Z.S. , Zubavichus Y.V. , Kaichev V.V.
CuFeAl-Composite Catalysts of Oxidation of Gasification Products of Solid Fuels: In situ XAS and XRD Study
Radiation Physics and Chemistry. 2020. V.175. NSI. 108071 :1-4. DOI: 10.1016/j.radphyschem.2018.11.025 WOS Scopus РИНЦ CAPlus OpenAlex
Даты:
Поступила в редакцию: 30 сент. 2018 г.
Принята к публикации: 25 нояб. 2018 г.
Опубликована online: 26 нояб. 2018 г.
Опубликована в печати: 1 окт. 2020 г.
Идентификаторы БД:
Web of science: WOS:000543372500036
Scopus: 2-s2.0-85058150349
РИНЦ: 45548339
Chemical Abstracts: 2018:2537486
OpenAlex: W2903540679
Цитирование в БД:
БД Цитирований
Scopus 8
РИНЦ 8
Web of science 7
OpenAlex 8
Альметрики: