Diphenylphosphine Functionalized Graphite Oxide Loaded with Platinum Complex: Preparation and Catalytic Performance for the Hydrosilylation of Olefins

By supported platinum complex to the graphite oxide carrier modified by diphenylphosphine ligands, a GO-P-Pt catalyst was synthesized. The GO-P-Pt catalyst was characterized by means of elemental analysis, FT-IR and XRD, and tested for the hydrosilylation of olefin with triethoxysilane. The catalytic results shows that GO-P-Pt catalyst possessed a high catalytic activity, and 94.6% conversion of 1-octene and 99.4% selectivity of beta-adduct in yield were obtained at 100 degrees C after 180 min. And the selectivity of beta-adduct was lower when the aromatic olefins were used as reaction substrates. Additionally, GO-P-Pt catalyst can be recycled four times without significant loss of catalytic activity and selectivity.