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A comparative investigation of surface hydroxylation states for anatase–TiO 2 and γ-alumina is crucial for a better understanding of how these materials behave as catalytic supports under working conditions. Our approach combines density functional simulations and thermodynamic analysis, to determine the types of hydroxyls existing on the (100), (101), (001), and (110) surfaces of anatase–TiO...
Ruthenium (Ru) has been tested as a dopant for NiMo on alumina catalyst. A promotion effect is observed for the hydrodesulfurization (HDS) of dibenzothiophene (DBT), and the hydrogenation (HYD) of tetralin. Maximum activity is obtained at a loading in the range of 0.25-0.5wt.% Ru added to a NiMo catalyst. Temperature programmed reduction (TPR) and TEM were used to characterize the catalysts. The possibility...
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