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Propene Transformation on Cu-Modified ZSM-5 Zeolite: Aromatization and Oxidation Full article

Journal Microporous and Mesoporous Materials
ISSN: 1387-1811 , E-ISSN: 1873-3093
Output data Year: 2023, Volume: 350, Article number : 112448, Pages count : 8 DOI: 10.1016/j.micromeso.2023.112448
Tags Propene oxidation; Propene aromatization; Cu-modified ZSM-5 zeolite; Solid-state NMR; FTIR spectroscopy
Authors Lashchinskaya Zoya N. 1 , Gabrienko Anton A. 1 , Stepanov Alexander G. 1
Affiliations
1 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk, 630090, Russia

Funding (2)

1 Ministry of Science and Higher Education of the Russian Federation 0239-2021-0003
2 Russian Science Foundation 21-73-10013

Abstract: Propene transformation on copper-modified ZSM-5 zeolite has been studied by 13C MAS NMR and FTIR spectroscopy. Two major reaction pathways are identified, aromatization to the simple aromatic hydrocarbons (benzene, toluene) and oxidation to acrolein. Copper-allyl species is inferred to be the key intermediate in both processes. π-Complex of propene with copper sites is the primary intermediate, preceding the formation of copper-allyl species. The role of different active sites is established. Cu2+–O2– Lewis acid-base pairs are responsible for the allylic species formation, whereas [Cu3(μ-O)3]2+ oxo-clusters provide the oxidation of copper-allyls. The results obtained are of importance for developing zeolite-based catalysts for propene aromatization to the simple aromatic compounds and partial oxidation to acrolein.
Cite: Lashchinskaya Z.N. , Gabrienko A.A. , Stepanov A.G.
Propene Transformation on Cu-Modified ZSM-5 Zeolite: Aromatization and Oxidation
Microporous and Mesoporous Materials. 2023. V.350. 112448 :1-8. DOI: 10.1016/j.micromeso.2023.112448 WOS Scopus РИНЦ AN OpenAlex
Dates:
Submitted: Oct 17, 2022
Accepted: Jan 10, 2023
Published online: Jan 13, 2023
Published print: Feb 15, 2023
Identifiers:
Web of science: WOS:000923755900001
Scopus: 2-s2.0-85146461982
Elibrary: 53926535
Chemical Abstracts: 2023:158646
OpenAlex: W4316038600
Citing:
DB Citing
Scopus 16
Web of science 16
Elibrary 15
OpenAlex 17
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