METHOD OF PRODUCING MOLYBDENUM DISULPHIDE NANOPARTICLES ON TITANIUM DIOXIDE SUPPORT

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to a method of producing MoS₂ nanoparticles on TiO₂ support in which production is carried out by reductive coprecipitation using aqueous solutions containing Ti and Mo precursor salts, wherein salts of Ti and Mo precursors are TiCl₃ and (NH₄)₂MoS₄ respectively, wherein production is carried out in one step directly from a solution of corresponding metal salts of TiCl₃ and (NH₄)₂MoS₄, wherein the preparation is carried out in acidic conditions at pH in range of 3 to 4 and during the production process, a chelating agent selected from EDTA or citric acid is added, and in which MoS₂ can be non-promoted or promoted Co. Also disclosed is a method of MoS₂ nanoparticles on TiO₂ support in which the preparation is carried out in two steps from TiO_2-x support precursor dispersion in (NH₄)₂MoS₄ solution, wherein TiO_2-x support precursor is prepared before introduction of (NH₄)₂MoS₄ salt. Invention also relates to use of said nanoparticles as hydrodesulphurization catalysts.;EFFECT: technical result is obtaining nanoparticles of MoS₂ on a titanium dioxide support, which provide improved selectivity when used as hydrodesulphurization catalysts.;6 cl, 10 dwg, 4 tbl