Synthesis, properties, and activity of MoVTeNbO catalysts modified by zirconia-pillared clays in oxidative dehydrogenation of ethane
Shorayeva K.A. Massalimova B.K. Bespalko Y.N. Kovalev E.P. Ishchenko A.V. Sadykov V.A.
1 January 2021De Gruyter Open Ltd
Open Chemistry
2021#19Issue 1492 - 502 pp.
Composites comprising MoVTeNbO mixed oxide and zirconia-pillared montmorillonite clays (PilCs) were prepared. XRD and TEM with EDX studies confirmed the preservation of M1 MoVTeNbO phase in these composites responsible for high activity and selectivity in ethane oxidative dehydrogenation into ethylene. For composites with PilC content of 10 wt%, the best ethylene yield exceeding that of bulk MoVTeNbO oxide was demonstrated for clays with zirconia pillars doped with Ce and Al possessing the highest specific surface area. This is explained by optimized chemical interaction of these clays with MoVTeNbO mixed oxide improving its bulk oxygen mobility and reactivity by structure disordering while blocking surface sites responsible for combustion due to the stabilization of the reactive terminal oxygen species.
composites with pillared clays , MoVTeNbO mixed oxide , oxidative dehydrogenation of ethane to ethylene
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Department of Chemistry and Chemical Technology, M. Kh. Dulaty Taraz Regional University, 60, St. Tole Bi, Taraz, 080000, Kazakhstan
Department of Natural Sciences, Novosibirsk State University, 2, Pirogova St., Novosibirsk, 630090, Russian Federation
Department of Heterogeneous Catalysis, Laboratory of Deep Oxidation Catalysts, Boreskov Institute of Catalysis, 5, Ave. Lavrentieva, Novosibirsk, 630090, Russian Federation
Department of Heterogeneous catalysis, Laboratory of Heterogeneous Selective Oxidation, Boreskov Institute of Catalysis, 5, Ave. Lavrentieva, Novosibirsk, 630090, Russian Federation
Catalyst Research Department, Boreskov Institute of Catalysis, 5, Ave. Lavrentieva, Novosibirsk, 630090, Russian Federation
Department of Natural Sciences, Novosibirsk State University, 2, Pirogova St., Novosibirsk, 630090, Russian Federation
Department of Heterogeneous Catalysis, Boreskov Institute of Catalysis, 5, Ave. Lavrentieva, Novosibirsk, 630090, Russian Federation
Department of Chemistry and Chemical Technology
Department of Natural Sciences
Department of Heterogeneous Catalysis
Department of Heterogeneous catalysis
Catalyst Research Department
Department of Natural Sciences
Department of Heterogeneous Catalysis
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