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Methane oxidation on vanadium oxide catalysts synthesized by molecular dispersion on aerosil

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Abstract

It has been found that (≡Si−O)2V2xO5x−1 catalysts accelerate partial and complete oxidation of CH4 at 450–550°C. The steps responsible for the rate of the overall reaction with the participation of N2O at low temperatures involve single V-centers and\(\mathop {O^ - }\limits^. \), whereas in the oxidation by O2 at higher temperatures V-“clusters” and O2−-species take part.

Abstract

Катализаторы (≡Si−O)2V2xO5x−1 ускоряют парциальное и полное окисление CH4 при 450–550°C. В стадиях, определяющих скорость суммарной реакции окисления с помощью N2O при низких температурах, участвуют одиночные V-центры и частицы\(O^{. - } \), тогда как при окислении с помощью O2 при повышенных температурах участвуют “кластеры” и частицы O2−.

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Ilchenko, N.I., Hanke, W., Rayevskaya, L.N. et al. Methane oxidation on vanadium oxide catalysts synthesized by molecular dispersion on aerosil. React Kinet Catal Lett 41, 147–152 (1990). https://doi.org/10.1007/BF02075496

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  • DOI: https://doi.org/10.1007/BF02075496

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