Chemoselective Hydrogenolysis of Glycerol Catalyzed by Platinum on Carbonaceous Supports

W. Oberhauser, C. Evangelisti, R. Psaro, F. Vizza, M. Bevilacqua, J. Filippi, A. Lavacchi, A. Marchionni, H.A. Miller, B.F. Machado, P. Serp
CNR-ICCOM, IT

Keywords: platinum catalyst, glycerol, hydrogenolysis, carbon

Summary:

Glycerol has been selectively converted into 1,2-propandiol in the presence of dihydrogen and heterogeneous Pt-based catalysts. These latter catalysts consist of small-size Pt-nanoparticles (NPs) (i.e. 1.0-1.5 nm,) obtained by a metal vapor synthesis, supported on different carbonaceous supports which differ mainly in surface area and surface polarity. Catalytic data combined with microscopic (i.e. TEM investigations of the supported Pt-NPs after catalysis) evidences showed a good correlation between the catalytic activity and chemoselectivity of the Pt-NPs and the NP-stabilizing property of the carbonaceous supports.