The Activation of MnOx-ZrO2 Catalyst in CO Oxidation: Operando XRD Study Научная публикация
| Журнал |
Materials Letters
ISSN: 0167-577X , E-ISSN: 1873-4979 |
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| Вых. Данные | Год: 2022, Том: 315, Номер статьи : 131961, Страниц : 4 DOI: 10.1016/j.matlet.2022.131961 | ||||||
| Ключевые слова | CO oxidation; Manganese oxide; Operando XRD; Solid solution; Zirconia | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Российский научный фонд | 21-73-10218 |
Реферат:
The present study demonstrates that the reduction–oxidation pretreatment leads to an increase in the catalytic activity in CO oxidation for MnOx-ZrO2 catalyst. Crystalline phases present in as-prepared MnOx-ZrO2 catalyst are Mn3O4, Mn2O3 and solid solution (Mn,Zr)O2. By varying the conditions of pretreatment, the following results can be achieved: (1) decomposition of a solid solution; (2) change the ratio and the dispersion of oxides. In CO environment, the reduction of Mn cations occurs both in the volume of the (Mn,Zr)O2 solid solution and in manganese oxides. The reduction process is accompanied by the MnO segregation on the surface of the initial oxides. In an oxygen-containing environment, the reoxidation of surface manganese oxides proceeds with the formation of Mn2O3 and Mn3O4. © 2022 Elsevier B.V.
Библиографическая ссылка:
Bulavchenko O.A.
, Vinokurov Z.S.
, Afonasenko T.N.
, Gerasimov E.Y.
, Konovalova V.P.
The Activation of MnOx-ZrO2 Catalyst in CO Oxidation: Operando XRD Study
Materials Letters. 2022. V.315. 131961 :1-4. DOI: 10.1016/j.matlet.2022.131961 WOS Scopus РИНЦ OpenAlex CAPlusCA ЦНХТ ID СКИФ ID
The Activation of MnOx-ZrO2 Catalyst in CO Oxidation: Operando XRD Study
Materials Letters. 2022. V.315. 131961 :1-4. DOI: 10.1016/j.matlet.2022.131961 WOS Scopus РИНЦ OpenAlex CAPlusCA ЦНХТ ID СКИФ ID
Даты:
| Поступила в редакцию: | 19 нояб. 2021 г. |
| Принята к публикации: | 20 февр. 2022 г. |
| Опубликована online: | 22 февр. 2022 г. |
| Опубликована в печати: | 15 мая 2022 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000767830300004 |
| ≡ Scopus: | 2-s2.0-85125016842 |
| ≡ РИНЦ: | 48183166 |
| ≡ OpenAlex: | W4213263210 |
| ≡ Chemical Abstracts: | 2022:510403 |
| ≡ Chemical Abstracts (print): | 179:51066 |
| ≡ ЦНХТ ID: | 3720 |
| ≡ СКИФ ID: | 1332 |