Effect of Calcination Temperature on the Properties of Mn–Zr–Ce Catalysts in the Oxidation of Carbon Monoxide Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2022, Volume: 63, Number: 4, Pages: 431-439 Pages count : 9 DOI: 10.1134/S0023158422040012 | ||||
| Tags | Mn–Zr–Се catalysts, thermal stability, CO oxidation | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 21-73-10218 (122051600004-3) |
Abstract:
The effect of the calcination temperature of MnOх–ZrO2–CeO2 catalysts on their structural properties
and activity in the reaction of CO oxidation has been studied. Triple oxide systems with the cation ratio
Mn : Zr : Ce = 0.3 : 0.35 : 0.35 prepared by coprecipitation have been investigated. According to the XRD,
TPR-H2, and XPS data, an increase in the calcination temperature from 400 to 800°C caused a structural
transformation of the MnyZrxCe1 – yO2 – δ solid solution. At 400–600°C, manganese cations leaved the structure
of solid solution in the form of highly dispersed MnOx particles; at 700–800°C, the initial solid solution
MnyZrxCe1 – yO2 – δ decomposed with the formation of two mixed oxides based on CeO2 and ZrO2 and a
crystallized phase of Mn3O4. The highest catalytic activity in the CO oxidation reaction was exhibited by
MnOx–ZrO2–CeO2 catalysts calcined at 500–600°C; this was probably due to the presence of manganese
both in the structure of the solid solution and in the form of highly dispersed MnOx particles on its surface.
Cite:
Afonasenko T.N.
, Glyzdova D.V.
, Konovalova V.P.
, Saraev A.A.
, Aydakov E.E.
, Bulavchenko O.A.
Effect of Calcination Temperature on the Properties of Mn–Zr–Ce Catalysts in the Oxidation of Carbon Monoxide
Kinetics and Catalysis. 2022. V.63. N4. P.431-439. DOI: 10.1134/S0023158422040012 WOS Scopus РИНЦ OpenAlex
Effect of Calcination Temperature on the Properties of Mn–Zr–Ce Catalysts in the Oxidation of Carbon Monoxide
Kinetics and Catalysis. 2022. V.63. N4. P.431-439. DOI: 10.1134/S0023158422040012 WOS Scopus РИНЦ OpenAlex
Original:
Афонасенко Т.Н.
, Глыздова Д.В.
, Коновалова В.П.
, Сараев А.А.
, Айдаков Е.Е.
, Булавченко О.А.
Влияние температуры прокаливания на свойства Mn–Zr–Сe-катализаторов в окислении СО
Кинетика и катализ. 2022. Т.63. №4. С.506-515. DOI: 10.31857/S0453881122040013 РИНЦ OpenAlex
Влияние температуры прокаливания на свойства Mn–Zr–Сe-катализаторов в окислении СО
Кинетика и катализ. 2022. Т.63. №4. С.506-515. DOI: 10.31857/S0453881122040013 РИНЦ OpenAlex
Dates:
| Submitted: | Feb 15, 2022 |
| Accepted: | Mar 24, 2022 |
| Published print: | Sep 1, 2022 |
Identifiers:
| Web of science: | WOS:000848893700011 |
| Scopus: | 2-s2.0-85137580138 |
| Elibrary: | 50420618 |
| OpenAlex: | W4294073642 |