Physicochemical and surface properties of alumina modified with rare earth oxides,III.Dispersion of supported platinum

摘要

The effect of variosu amounts of lanthanides on teh dispersion of Pt on Al_2O_3- Ln_2O_3(where Ln=La,Ce) has been stdied by hydrogen chemisorption in a pulse chromatographic system.Composite oxides represent a relatively new class of mixed oxide supports potentially showing unique properties as carriers of catalytic methals.