Glycerol conversion into H2 by steam reforming over Ni and PtNi catalysts supported on MgO modified γ-Al2O3

The glycerol catalytic steam reforming over Ni and PtNi catalysts to produce H-2 was studied. The activity results indicate that the catalyst with the lower content of MgO, the NiA1M, provides higher H-2 molar ratios than the Ni catalyst. The behaviour of the NiA1M catalysts seems to be related to the Ni degrees species stabilization by nickel-magnesia interactions, which are favoured by the presence of well dispersed MgAl2O4 spinels. The bimetallic catalyst, PtNiA3M named, reforms the intermediate products improving the activity of the Ni monometallic catalyst toward H-2 production. The characterization results suggest that the Pt in the Ni monometallic catalyst enhances the Ni degrees particles dispersion and the nickel species reducibility by H-2 spillover.