reactivity of cyclohexene using ordered mesoporous materials based on calcined cofeal hydrotalcite-supported como catalysts

Co2+, fe3+ and al3+ tertiary hydrotalcite-type solids were synthesized, calcined and impregnated with mo (15 wt% moo3) and co (3mo:co) in order to get different catalytic precursors: como/cofeal. as-synthesized hydrotalcites and their catalytic precursors were characterized by different physicochemical techniques, such as: x-ray fluorescence, n2 adsorption–desorption isotherms (bet specific surface area, bjh pore volume and diameter), fourier transform infrared spectroscopy, x-ray diffraction and temperature-programmed desorption of carbon dioxide. these como/cofeal catalytic precursors were previously pre-sulfided with cs2 and tested in the cyclohexene hydrogenation reaction. results indicated that these sulfide catalysts showed very low activity in comparison with the conventional como/al2o3 catalyst used as reference, possibly to their high basicity. these catalysts could have the advantage of retaining the octane number of gasoline, by low hydrogenation of olefins.