Nanodispersed VO.sub.x/SiO.sub.2 Catalysts of Partial Oxidation of Paraffin Hydrocarbons

VO.sub.x/SiO.sub.2 with different V/Si atomic ratios have been synthesized by hydrothermal method from alkoxides of vanadium and silicon compounds. The prepared samples are characterized by high specific surface area (300-700 m.sup.2/g), uniform nanodispersed distribution of vanadia in silica matrix...

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Bibliographic Details
Published in:Theoretical and experimental chemistry 2022-09, Vol.58 (4), p.261
Main Authors: Zazhigalov, V. O, Grinenko, S. B, Bacherikova, I. V, Diyuk, O. A
Format: Article
Language:English
Subjects:
Catalysts
Dehydrogenation
Formaldehyde
Methane
Oxidation-reduction reaction
Raman spectroscopy
Silica
Vanadium
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Summary:VO.sub.x/SiO.sub.2 with different V/Si atomic ratios have been synthesized by hydrothermal method from alkoxides of vanadium and silicon compounds. The prepared samples are characterized by high specific surface area (300-700 m.sup.2/g), uniform nanodispersed distribution of vanadia in silica matrix, the absence of crystalline phases, and the absence of the band typical for V=O bond in the Raman spectra. High activity and selectivity of the synthesized catalysts in oxidation of methane to formaldehyde, oxy-dehydrogenation of propane and n-butane have been established.
ISSN:0040-5760
DOI:10.1007/s11237-022-09743-4