THE STATE AND CATALYTIC PROPERTIES OF (NI+PD)/SIO2 SYSTEMS OBTAINED BY GRAFTING ORGANOMETALLIC COMPLEXES ON THE SURFACE OF SIO2

The adsorption and catalytic properties of Pd/SiO2, Ni/SiO2, and (Pd + Ni)/SiO2 samples obtained by grafting organometallic Pd and Ni compounds on the support surface are studied. Bimetallic Pd-Ni catalysts are shown to have an additive catalytic action in the hydrogenation of benzene. Synergistic effects are detected in the reactions of ethane hydrogenolysis, CO hydrogenation, and propylene hydroformylation. The obtained data show that the surface of bimetallic cluster particles becomes enriched with palladium atoms.