Catalytic oxidation of glucose over highly stable AuxPdy NPs immobilised on ceria nanorods

The catalytic performance of AuxPdy nanoparticles prepared by colloidal synthesis and immobilised on ceria nanorods (Ce-NR) in the selective oxidation of glucose has been studied under initially basic and relatively mild conditions. Activity was found to be strongly dependent on the bimetallic composition with Au-rich catalysts being more active in glucose oxidation. Catalyst recycling revealed negligible deactivation or metal loss from leaching, and continuing high selectivity to gluconic acid (?97.7%). Defects on the Ce-NR surface appear to serve as anchoring sites for Au-Pd NPs giving rise to small and very stable NPs.

Automated summary

AuxPdy nanoparticles prepared by colloidal synthesis and immobilised on ceria nanorods exhibit excellent catalytic performance in the selective oxidation of glucose, with activity strongly dependent on bimetallic composition. The catalyst shows good recyclability and high selectivity, with defects on the ceria nanorods surface serving as anchoring sites for the nanoparticles.