Solution preparation of the amorphous molybdenum oxysulfide MoOS{sub 2} and its use for catalysis

Journal Article · Thu Sep 15 04:00:00 EDT 2005 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/j.jssc.2005.06.016· OSTI ID:20729083

Genuit, Daisy ^[1]; Bezverkhyy, Igor ^[1]; Afanasiev, Pavel ^[1]

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1. Institut de Recherches sur la Catalyse 2, avenue A. Einstein, 69626 Villeurbanne Cedex (France)

Acid condensation of aqueous MoO{sub 2}S{sub 2} {sup 2-} anion yields amorphous MoOS{sub 2} oxysulfide. This compound possesses tubular morphology and when freshly precipitated is soluble in polar organics 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 MoOS{sub 2} core. Thermal decomposition of MoOS{sub 2} under inert atmosphere leads to the formation of a mixture of MoO{sub 2} and MoS{sub 2} phases. Promotion of MoOS{sub 2} with cobalt followed by sulfidation leads to highly active HDS catalysts.

• OSTI ID: 20729083
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 9 Vol. 178; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ABSORPTION SPECTROSCOPY
CATALYSIS
FINE STRUCTURE
INERT ATMOSPHERE
MOLYBDENUM COMPOUNDS
MORPHOLOGY
OXYSULFIDES
PYROLYSIS
SULFIDATION
X-RAY SPECTROSCOPY