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Article Dans Une Revue Journal of Solid State Chemistry Année : 2005

Solution preparation of the amorphous molybdenum oxysulfide MoOS2 and its use for catalysis

D. Genuit
  • Fonction : Auteur
I. Bezverkhyy
  • Fonction : Auteur
P. Afanasiev

Résumé

Acid condensation of aq. MoO2S2-2 anion yields amorphous MoOS2 oxysulfide. This compd. possesses tubular morphol. and when freshly pptd. is sol. in polar orgs. such as acetone and ethanol. The ensemble of characterizations (IR, UV-visible, EXAFS spectroscopy) suggests that it contains cyclic or short linear oligomers of neutral molybdenum (V) oxysulfide MoOS2 core. Thermal decompn. of MoOS2 under inert atm. leads to the formation of a mixt. of MoO2 and MoS2 phases. Promotion of MoOS2 with cobalt followed by sulfidation leads to highly active HDS catalysts.

Domaines

Catalyse
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Dates et versions

hal-00012521 , version 1 (24-10-2005)

Identifiants

  • HAL Id : hal-00012521 , version 1

Citer

D. Genuit, I. Bezverkhyy, P. Afanasiev. Solution preparation of the amorphous molybdenum oxysulfide MoOS2 and its use for catalysis. Journal of Solid State Chemistry, 2005, 178 (9), pp.2759-2765. ⟨hal-00012521⟩

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