NDLI: Silica Gel-Supported, Metal-Promoted MoS2 Catalysts for HDS Reactions

Content Provider	Springer Nature Link
Author	Rivera Muñoz, E. Alonso, G. Siadati, M.H. Chianelli, R.R.
Copyright Year	2004
Abstract	Silica-supported, metal-promoted MoS2 catalysts were prepared. Sol–gel method was used for providing the SiO2 support as well as for including the catalyst precursors and promoter in one single step of preparation. The general idea in this approach is to obtain the promoted MoS2 catalyst phase finely and uniformly distributed in the SiO2 support. Scanning electron microscopy of the obtained catalysts shows a fine and homogeneous distribution of the metal-promoted MoS2 particles on the SiO2 matrix with surface area between 62 and 104m2/g. Metal promoter affects the surface area, pore size distribution and the hydrodesulfurization (HDS) activity and selectivity. When different promoters were used at the same amount, the highest selectivity for direct C–S bound cleavage is observed for Ru/MoS2/SiO2 catalyst, and at different amounts of Co the highest selectivity was occurred with Co/MoS2/SiO2 at 12% of Co/MoS2, X-ray diffraction studies showed that the catalysts are poorly crystallized with a very weak intensity of the (002) line of 2H-MoS2. Comparison on the catalytic activities of the catalysts with different metal promoters was made. Catalytic activity results showed the method of preparation used in this study is successful in producing very efficient catalysts for the HDS of dibenzothiophene (DBT). Silica-supported, cobalt-promoted MoS2 catalyst showed the highest activity.
Starting Page	199
Ending Page	204
Page Count	6
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	94
Issue Number	3-4
e-ISSN	1572879X
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2004-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Industrial Chemistry/Chemical Engineering Pharmacy
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

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