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The adsorption of O 2 on alumina-supported (Co)MoS 2 catalysts and the subsequent mild oxidation of the (Co)MoS 2 by O 2 have been studied by extended X-ray absorption fine-structure (EXAFS) spectroscopy. By analyzing the difference between spectra before and after O 2 exposure, small changes in the structure could be determined, which were not resolved using...
The hydrodesulfurization (HDS) of dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT) was studied over sulfided NiMo/γ-Al 2 O 3 , CoMo/γ-Al 2 O 3 , and Mo/γ-Al 2 O 3 catalysts. The Ni and Co promoters strongly enhanced the activity of the Mo catalyst in the direct desulfurization pathway of the HDS of DBT and 4,6-DMDBT and in the final...
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