Operando X-ray Diffraction Analysis of the MnOx–ZrO2 Catalyst During Oxidation of Propane Full article
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Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 2022, Volume: 63, Number: 6, Pages: 885–894 Pages count : 10 DOI: 10.1134/S0022476622060051 | ||||||
| Tags | zirconium oxide; fluorite; powder X-ray diffraction; manganese oxide; in situ; “operando” | ||||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Foundation for Basic Research | 19-43-543012 |
Abstract:
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.
Cite:
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 AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type publication_identifier_short.sciact_skif_identifier_type
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 AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type publication_identifier_short.sciact_skif_identifier_type
Original:
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 publication_identifier_short.sciact_ihcp_identifier_type publication_identifier_short.sciact_skif_identifier_type
«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 publication_identifier_short.sciact_ihcp_identifier_type publication_identifier_short.sciact_skif_identifier_type
Dates:
| Submitted: | Oct 7, 2021 |
| Accepted: | Jan 12, 2022 |
| Published print: | Jun 30, 2022 |
| Published online: | Jun 30, 2022 |
Identifiers:
| Web of science: | WOS:000819424400005 |
| Scopus: | 2-s2.0-8513313510 |
| Elibrary: | 49152081 |
| Chemical Abstracts: | 2022:1720822 |
| OpenAlex: | W4283720388 |
| publication_identifier.sciact_ihcp_identifier_type: | 4031 |
| publication_identifier.sciact_skif_identifier_type: | 1337 |