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Influence of the mobility of oxygen in a complex oxide carrier on the mechanism of partial oxidation of methane

  • Supplement: Rossiiskii Khimicheskii Zhurnal-Zhurnal Rossiiskogo Khimicheskogo Obshchestva im. D.I. Mendeleeva (Russian Chemistry Journal)
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Abstract

The catalytic partial oxidation of methane was studied over single channels of monolith catalysts Pt/PrCeZrO/α-Al2O3 and Pt/GdCeZrO/α-Al2O3 using the temporal analysis of products (TAP) and kinetic transients. Effects of catalyst composition, oxidation state, time offset between O2 and CH4 pulses on activity, selectivity and dynamics of product formation were elucidated. Realization of the direct pyrolysis-CH4 partial oxidation route was reliably established. This route is favored by optimum lattice/surface oxygen mobility and reactivity controlled by the dopant type (Gd, Pr) and oxidation state of the complex cerium/zirconium oxide.

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Authors and Affiliations

  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Lavrent’eva 5, Novosibirsk, 630090, Russia

    E. L. Gubanova, V. A. Sadykov & N. N. Sazonova

  2. Institute for Research in Catalysis and Environment, Lyon, France

    A. Van Veen & C. Mirodatos

Authors
  1. E. L. Gubanova
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  2. A. Van Veen
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  3. C. Mirodatos
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  4. V. A. Sadykov
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  5. N. N. Sazonova
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Corresponding author

Correspondence to V. A. Sadykov.

Additional information

Original Russian Text © E.L. Gubanova, A. Van Veen, C. Mirodatos, V.A. Sadykov, N.N. Sazonova, 2008, published in Rossiiskii Khimicheskii Zhurnal, 2008, Vol. 52, No. 1, pp. 21–31.

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Gubanova, E.L., Van Veen, A., Mirodatos, C. et al. Influence of the mobility of oxygen in a complex oxide carrier on the mechanism of partial oxidation of methane. Russ J Gen Chem 78, 2191–2202 (2008). https://doi.org/10.1134/S1070363208110406

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  • DOI: https://doi.org/10.1134/S1070363208110406

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