Abstract
Bi promoted Pd/C catalyst (Bi-Pd/C) was prepared and evaluated for glucose oxidation in this paper. Reaction rate depends on Bi and Pd ratio on activated carbon. Best promotion effect was got when PdCl2 to Bi (NO)3·5H2O weight ratio was 1 to 3 during catalyst preparation. Compared with other noble metal catalyst, the reaction time was reduced and Bi prevented the Pd/C deactivation during this reaction. The reaction cycle for this catalyst was increased a lot compared with other Pd/C catalyst. Through XPS analysis, Bi, Pd was formed on the surface of activated carbon particles. The catalyst reaction cycles for Bi-Pd/C catalyst was exceeded to 20 cycles in spite of the catalyst loss during each cycle. This catalyst can be used for industrial process to oxidize glucose to sodium gluconate.
