Surface characterization of Ga2O3-TiO2 and V2O5/Ga2O3-TiO2 catalysts

Article Abstract:

The techniques of X-ray photoelectron spectroscopy, X-ray diffraction, FT-infrared, and O2 chemisorption were employed to characterize a specially obtained Ga2O3-TiO2 mixed oxide and V2O5/Ga2O3-TiO2 catalyst calcined at different temperatures from 773 to 1073 K. The characterization results suggest that the Ga2O3-TiO2 mixed oxide, calcined at 773 K, primarily consists of a mixture of TiO2 anatase and alpha-Ga2O3.

Gallium, X-rays, X-ray diffraction, Optical properties

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Adsorption of molybdate monomers and polymers on titania with a multisite approach

Article Abstract:

Adsorption of molybdate monomers and polymers on the surface of the titanium oxide using charge distribution - multisite complexation (CD-MUSIC) approach is presented. It can be concluded that the high-affinity adsorption of molybdates on titania surface are observed at very low Mo levels.

Polymers

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Study of gamma-alumina-supported hydrotreating catalyst: I. Adsorption of bare MoS(sub 2) sheets on gamma-alumina surfaces

Article Abstract:

The adsorption of bare MoS(sub 2) sheets was studied where no promoter was considered. A periodical FW-DPT approach that makes use of crystal periodic boundary conditions and symmetry, and consequently, and that better describes the two systems and their interactions is proposed.

Metal ores, not elsewhere classified, All Other Metal Ore Mining, Alumina, Electric properties, Aluminum oxide

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