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- Title
Mechanochemical synthesis of nanocrystalline nickel-molybdenum compounds and their morphology and application in catalysis: III. Catalytic properties of massive Ni-Mo sulfide catalysts synthesized using mechanochemical activation.
- Authors
Knyazheva, O.; Baklanova, O.; Lavrenov, A.; Buluchevskii, E.; Drozdov, V.; Trenikhin, M.; Leont'eva, N.; Vasilevich, A.; Likholobov, V.
- Abstract
The precursors of massive Ni-Mo catalysts for hydrotreating processes, which were synthesized by the mechanochemical activation of a mixture of nickel hydroxocarbonate NiCO·2Ni(OH)· nHO and ammonium paramolybdate (NH)MoO · 4HO, were sulfidized. Their structure was studied by X-ray diffraction analysis and high-resolution electron microscopy. It was found that MoS packets, which are characterized by the presence of structural defects and geometric curvature, are the constituents of the massive catalysts. The catalyst also includes a phase of NiS and regions containing a complex Ni-Mo-S phase. The catalytic tests of the synthesized catalysts in the model reactions of 1-methylnaphthalene and dibenzothiophene conversions showed that the catalyst whose precursor was a heteropoly compound with the Anderson structure after the stage of mechanochemical activation exhibited the highest activity.
- Subjects
MECHANICAL chemistry; NANOCRYSTALS; NICKEL compounds; METAL catalysts; HYDROTREATING catalysts; METAL complexes; CRYSTAL structure
- Publication
Kinetics & Catalysis, 2014, Vol 55, Issue 1, p130
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158414010054