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Oxidative Condensation of Methane on Sr2 –xLaxTiO4 Catalysts: Effect of the Degree of Substitution of Sr and La

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Abstract

The Sr2 –xLaxTiO4 (x = 0–2.0) catalysts were synthesized based on strontium titanate with a layered perovskite structure. The effect of the degree of substitution of La for Sr on the physicochemical (phase composition and textural characteristics) and catalytic properties of oxides in the oxidative condensation of methane at temperatures of 700–800°C were studied. It was found that multiphase Sr2 – xLaxTiO4 samples with the degree of substitution x = 0.8–1.8 were most active and selective in the test reaction; this was likely related to the presence of lanthanum oxide and strontium oxide impurities in them, their optimum distribution over the surface, and the specific surface area.

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Funding

This work was performed within the framework of a state contract at the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences (project no. AAAA-A17-117041710090-3).

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Correspondence to R. V. Petrov.

Additional information

Translated by V. Makhlyarchuk

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Petrov, R.V., Ivanova, Y.A., Reshetnikov, S.I. et al. Oxidative Condensation of Methane on Sr2 –xLaxTiO4 Catalysts: Effect of the Degree of Substitution of Sr and La. Kinet Catal 60, 862–867 (2019). https://doi.org/10.1134/S0023158419030108

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Keywords:

  • oxidative condensation of methane
  • synthesis of catalysts
  • layered perovskites
  • strontium titanate