Modifications of unpromoted and cobalt-promoted MoS2 during thermal treatment by dimethylsulfide

Previous results have shown that the active surface in stabilized active sulfide catalysts is carbided. This fact led us to reconsider the influence of organosulfide agents in the activation of hydrotreatment catalysts. Structural and morphological consequences of dimethylsulfide treatment of (Co)/M...

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Bibliographic Details
Published in:Catalysis letters 2002-03, Vol.78 (1-4), p.81-90
Main Authors: BERHAULT, Gilles, COTA ARAIZA, Leonel, DUARTE MOLLER, Alberto, MEHTA, Apurva, CHIANELLI, Russell R
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Heat treatment
Molybdenum disulfide
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Previous results have shown that the active surface in stabilized active sulfide catalysts is carbided. This fact led us to reconsider the influence of organosulfide agents in the activation of hydrotreatment catalysts. Structural and morphological consequences of dimethylsulfide treatment of (Co)/MoS2-based solids were studied. Results suggest that the electronic promotion of Mo by Co substantially influences the carbon replacement of sulfur atoms at the edges of molybdenum sulfide layers.
ISSN:1011-372X
1572-879X
DOI:10.1023/A:1014910105975