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Operando X-ray Diffraction Analysis of the MnOx–ZrO2 Catalyst During Oxidation of Propane Научная публикация

Журнал Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779
Вых. Данные Год: 2022, Том: 63, Номер: 6, Страницы: 885–894 Страниц : 10 DOI: 10.1134/S0022476622060051
Ключевые слова zirconium oxide; fluorite; powder X-ray diffraction; manganese oxide; in situ; “operando”
Авторы Bulavchenko O.A. 1 , Vinokurov Z.S. 1,2 , Konovalova V.P. 1 , Afonasenko T.N. 3
Организации
1 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2 SKIF Center, Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Kol’tsovo, Russia
3 Center of New Chemical Technologies, Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Omsk, Russia

Информация о финансировании (1)

1 Российский фонд фундаментальных исследований 19-43-543012

Реферат: A series of MnOx–ZrO2 catalysts is prepared by coprecipitation with variation of the calcinationtemperature from 400 °C to 800 °C. It is shown that the catalyst calcined at 650-700 °C exhibits the highest activity in the propane oxidation reaction. The MnOx–ZrO2 catalyst is studied by operando X-ray diffraction under conditions of the propane oxidation reaction. The structural features of the catalyst are examined upon heating in propane or oxygen media or at the propane:oxygen ratio of 1:6. It is found that in pure propane, there is the dehydrogenation reaction on the catalyst with the formation of propylene and hydrogen and is accompanied by a change in the catalyst structure. The initial catalyst consists of a (Mn, Zr)O2 solid solution and Mn2O3 oxide. During the reaction, Mn cations are reduced in both (Mn, Zr)O2 solid solution bulk and compositions of crystalline oxides: Mn2O3 → Mn3O4 → MnO. Under the catalytic conditions of the propane oxidation reaction and in pure oxygen, the catalyst structure remains unchanged.
Библиографическая ссылка: Bulavchenko O.A. , Vinokurov Z.S. , Konovalova V.P. , Afonasenko T.N.
Operando X-ray Diffraction Analysis of the MnOx–ZrO2 Catalyst During Oxidation of Propane
Journal of Structural Chemistry. 2022. V.63. N6. P.885–894. DOI: 10.1134/S0022476622060051 WOS Scopus РИНЦ CAPlus OpenAlex ЦНХТ ID СКИФ ID
Оригинальная: Булавченко О.А. , Винокуров З.С. , Коновалова В.П. , Афонасенко Т.Н.
«Operando» — дифракционное исследование катализатора MnOx—ZrO2 при окислении пропана
Журнал структурной химии. 2022. Т.63. №6. С.751-760. DOI: 10.26902/jsc_id92417 РИНЦ OpenAlex ЦНХТ ID СКИФ ID
Даты:
Поступила в редакцию: 7 окт. 2021 г.
Принята к публикации: 12 янв. 2022 г.
Опубликована в печати: 30 июн. 2022 г.
Опубликована online: 30 июн. 2022 г.
Идентификаторы БД:
Web of science: WOS:000819424400005
Scopus: 2-s2.0-8513313510
РИНЦ: 49152081
Chemical Abstracts: 2022:1720822
OpenAlex: W4283720388
ЦНХТ ID: 4031
СКИФ ID: 1337
Цитирование в БД:
БД Цитирований
Web of science 1
OpenAlex 1
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