Different commercial supports (Olivine, Al2O3(ref), 5Mg/lLa mixed oxide, MgO, CaAlDLH, ZrO2, CeO2, Natural Sepiolite) incorporating Ni by incipient wetness impregnation have been tested in the Steam Reforming of Toluene(SRF). Among them, Ni supported on natural sepiolite exhibited a promised catalytic performance, with high catalytic activity, high selectivity to hydrogen and low production of not desired by-products. In order to improve the catalytic performance of this sepiolite based catalyst an alternative method of Ni incorporation, based on co-precipitation of a Ni precursor, has been considered. Precipitation method led to a Ni-based catalyst highly active and selective in the production of hydrogen. In addition, coke deposition and nickel sinterization decreased significandy. Characterization by BET area, XRD, and TEM showed that cprecipitation method allowed to synthesize a Ni-based catalyst with higher BET surface area, smaller, highly disperse and easily reducible Ni metal particles.These differential physico-chemical properties seem to be the major responsible of the better catalytic performance exhibited by the material prepared by precipitation method.
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