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Influence of CO Oxidation Conditions on the Mn-Zr Oxide Catalyst Structure: In situ XRD and MS Study Full article

Journal Materials Letters
ISSN: 0167-577X , E-ISSN: 1873-4979
Output data Year: 2020, Volume: 258, Article number : 126768, Pages count : 4 DOI: 10.1016/j.matlet.2019.126768
Tags CO oxidation; Crystal structure; In situ XRD; Solid solution; Structural; Zirconia
Authors Bulavchenko O.A. 1,2 , Vinokurov Z.S. 1,2 , Afonasenko T.N. 3 , Tsybulya S.V. 1,2
Affiliations
1 Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave., 5, Novosibirsk, 630090, Russian Federation
2 Novosibirsk State University, Pirogova Str., 2, Novosibirsk, 630090, Russian Federation
3 Center of New Chemical Technologies BIC, Nefrezavodskaya, 54, Omsk, 644040, Russian Federation

Funding (2)

1 Federal Agency for Scientific Organizations 0303-2016-0002
2 Russian Foundation for Basic Research 19-43-543012

Abstract: Mn-Zr oxide catalyst was studied by X-ray powder diffraction and mass-spectrometry under CO oxidation reaction conditions with different CO/O2 ratio. Mn-Zr catalyst consists of manganese oxides and MnyZr1–yO2–x solid solution and was found to be stable in the environment with stoichiometric ratio of CO/O2 = 2:1 and with excess of oxygen. When the catalyst is treated in the reducing environment (pure CO and CO/O2 = 4:1) the transformation of manganese oxides to MnO and reduction of manganese cations in the structure of MnyZr1–yO2–x are observed. This process is reversible and reoxidation leads to the formation of the catalyst similar to the initial. © 2019 Elsevier B.V.
Cite: Bulavchenko O.A. , Vinokurov Z.S. , Afonasenko T.N. , Tsybulya S.V.
Influence of CO Oxidation Conditions on the Mn-Zr Oxide Catalyst Structure: In situ XRD and MS Study
Materials Letters. 2020. V.258. 126768 :1-4. DOI: 10.1016/j.matlet.2019.126768 WOS Scopus РИНЦ AN OpenAlex publication_identifier_short.sciact_ihcp_identifier_type
Dates:
Submitted: Sep 20, 2019
Accepted: Oct 1, 2019
Published online: Oct 3, 2019
Published print: Jan 1, 2020
Identifiers:
Web of science: WOS:000500934600029
Scopus: 2-s2.0-85073097521
Elibrary: 41684532
Chemical Abstracts: 2019:1971341
OpenAlex: W2979162331
publication_identifier.sciact_ihcp_identifier_type: 2845
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Web of science 5
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