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The structure of oxidic and sulfided Mo catalysts supported on activated carbon was studied by means of X-ray diffraction (XRD), laser Raman spectroscopy (LRS), and extended X-ray absorption fine structure (EXAFS). The activity for mixed alcohol synthesis was also investigated. In oxidic state, the Mo phase on the sample with low Mo loading is mainly present as MoO 2 , due to the migration...
Acidic properties of Re 2 O 7 /Al 2 O 3 catalyst have been characterized by a combined study using Fourier transform infrared spectroscopy (FT-IR) and temperature-programed desorption (TPD). Pyridine was used as a base probe. The influences of reduction and the addition of alkaline salt to the catalyst have also been investigated. When the catalyst was reduced, strong...
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