Kinetic Studies of Disproportionation of Propylene over Several Supported MoO3 Catalysts

Selective oxidation of propylene to acrolein over supported V2O5/Nb2O5 catalysts: An in situ Raman, IR, TPSR and kinetic study

The vapor-phase selective oxidation of propylene (H2C CHCH3) to acrolein (H2C CHCHO) was investigated over supported V2O5/Nb2O5 catalysts. The catalysts were synthesized by incipient wetness impregnation of V-isopropoxide/isopropanol solutions and calcination at 450 8C. The catalytic active vanadia component was shown by in situ Raman spectroscopy to be 100% dispersed as surface VOx species on ...

Dehydrogenation of Propane to Propylene over Supported Model Ni–Au Catalysts

Hydrogenolysis and dehydrogenation of propane were studied over model nickel–gold catalysts. The supported model Ni–Au catalysts were prepared by depositing Ni and Au onto a planar silica film. Infrared reflection absorption spectroscopic data showed that isolated Ni sites appeared and became dominant on the surface with the addition of Au to Ni. For the conversion of propane in the presence of...

Catalytic Properties of Supported MoO3 Catalysts for Oxidative Dehydrogenation of Propane

The effects of MoOx structure on propane oxidative dehydrogenation (ODH) rates and selectivity were examined on Al2O3-supported MoOx catalysts with a wide range of surface density (0.4-12 Mo/nm), and compared with those obtained on MoOx/ZrO2. On MoOx/Al2O3 catalysts, propane turnover rate increased with increasing Mo surface density and reached a maximum value for samples with ~ 4.5 Mo/nm. All ...

Selective oxidation of propylene over model supported V2O5 catalysts: Influence of surface vanadia coverage and oxide support

Kinetic studies of oxygen reduction on supported metal nanoparticle-based catalysts

The research activity of the Chair of Colloid and Environmental Chemistry concentrates on the studies of processes in heterogeneous and nanostructured systems and the development of new analytical tools and methods which can be used for the environmental-friendly treatment of wastes. We are working out mathematical models for transition processes of pollutants in solid and liquid industrial was...