Abstract: The Mn-Ce oxide catalysts active in the oxidation of CO were studied by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), temperature-programmed reduction (TPR), transition electron microscopy (TEM), energy dispersive X-Ray (EDX), and a differential dissolution technique. The Mn-Ce catalysts were prepared by thermal decomposition of oxalates by varying the Mn:Ce ratio. The nanocrystalline oxides with a fluorite structure and particle sizes of 4–6 nm were formed. The introduction of manganese led to a reduction of the oxide particle size, a decrease in the surface area, and the formation of a MnyCe1−yO2−δ solid solution. An increase in the manganese content resulted in the formation of manganese oxides such as Mn2O3, Mn3O4, and Mn5O8 . The catalytic activity as a function of the manganese content had a volcano-like shape. The best catalytic performance was exhibited by the catalyst containing ca. 50 at.% Mn due to the high specific surface area, the formation of the solid solution, and the maximum content of the solid solution. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Cite: Bulavchenko O.A. , Afonasenko T.N. , Osipov A.R. , Pochtar’ A.A. , Saraev A.A. , Vinokurov Z.S. , Gerasimov E.Y. , Tsybulya S.V.
The Formation of Mn-Ce Oxide Catalysts for CO Oxidation by Oxalate Route: The Role of Manganese Content
Nanomaterials. 2021. V.11. N4. 988 :1-19. DOI: 10.3390/nano11040988 WOS Scopus РИНЦ AN PMID OpenAlex publication_identifier_short.sciact_ihcp_identifier_type

Files: Full text from publisher

Dates:

Submitted:	Mar 15, 2021
Accepted:	Apr 7, 2021
Published print:	Apr 12, 2021
Published online:	Apr 12, 2021

Identifiers:

Web of science:	WOS:000643362900001
Scopus:	2-s2.0-85103894714
Elibrary:	46831653
Chemical Abstracts:	2021:1161992
PMID:	33921273
OpenAlex:	W3156531554
publication_identifier.sciact_ihcp_identifier_type:	3617

Citing:

DB	Citing
Scopus	8
Web of science	7
Elibrary	8
OpenAlex	10

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