The thesis deals with the direct conversion of ethene to propene on heterogeneous catalysts based on mesoporous silica (MCM-41/48 and SBA-15) functionalized with nickel and aluminum. The support materials were synthesized after different preparations methods and loaded with varying metal fractions via incipient wetness impregnation and template-ion exchange. The as-prepared catalysts were thoroughly characterized by nitrogen physisorption, X-ray diffraction, ICP-OES and thermogravimetry. The ratio of the nickel to aluminum content showed a crucial effect on the selectivity to propene and on the deactivation of the catalyst. The applied support influenced more the catalytic activity of the template-ion exchanged materials than of the impregnated ones. Furthermore, the direct conversion of ethanol to propene was carried out with these catalysts.
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The thesis deals with the direct conversion of ethene to propene on heterogeneous catalysts based on mesoporous silica (MCM-41/48 and SBA-15) functionalized with nickel and aluminum. The support materials were synthesized after different preparations methods and loaded with varying metal fractions via incipient wetness impregnation and template-ion exchange. The as-prepared catalysts were thoroughly characterized by nitrogen physisorption, X-ray diffraction, ICP-OES and thermogravimetry. The rat...
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