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Properties and Structure of Nanosized Catalyst Systems Based on Molybdenum Sulfides

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Abstract

The phase compositions of molybdenum sulfide-based catalysts with various S/Mo ratios which are synthesized ex situ from reverse emulsions of the aqueous solution of ammonium paramolydbate (NH4)6Mo7O24. 4Н2О in the medium of vacuum residue in the presence of a sulfiding component (sulfur) are studied by chemical thermodynamics and X-ray diffraction. Issues related to the interpretation of the phase composition determining properties of the catalysts are discussed in detail. It is shown that the catalyst predominantly comprising MoS2 is formed at S/Mo above 2.5 (mol/mol) in the reverse emulsion and the content of carbon-containing components adsorbed on Мо-containing particles grows with an increase in the degree of sulfiding.

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Authors and Affiliations

  1. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia

    S. N. Khadzhiev, Kh. M. Kadiev, A. M. Gul’maliev & M. Kh. Kadieva

Authors
  1. S. N. Khadzhiev
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  2. Kh. M. Kadiev
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  3. A. M. Gul’maliev
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  4. M. Kh. Kadieva
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Corresponding author

Correspondence to M. Kh. Kadieva.

Additional information

Original Russian Text © S.N. Khadzhiev, Kh.M. Kadiev, A.M. Gul’maliev, M.Kh. Kadieva, 2017, published in Nanogeterogennyi Kataliz, 2017, Vol. 2, No. 2, pp. 110–118.

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Khadzhiev, S.N., Kadiev, K.M., Gul’maliev, A.M. et al. Properties and Structure of Nanosized Catalyst Systems Based on Molybdenum Sulfides. Pet. Chem. 57, 1277–1286 (2017). https://doi.org/10.1134/S0965544117140043

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  • DOI: https://doi.org/10.1134/S0965544117140043

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