Microscope Analysis of Au–Pd/TiO2 Glycerol Oxidation Catalysts Prepared by Deposition–Precipitation Method

Gold-palladium bimetallic nanoparticle cata- lysts prepared by a deposition-precipitation method were effective for aerobic oxidation of glycerol to carboxylic acids. The role of palladium was to suppress C-C bond cleavage that is responsible for the formation of C2 by- product molecules. The nanoparticles were observed by microscope techniques, which further enabled characteriz- ing the respective locations of Au and Pd within the particles.