Aerobic selective oxidation of glucose to gluconate catalyzed by Au/Al2O3 and Au/C: Impact of the mass-transfer processes on the overall kinetics

- Au/Al2O3 and Au/C with various distribution of Au in catalyst grains were studied.
- At high Au:glucose ratios reaction rate over Au/Al2O3 is higher than over Au/C.
- Gold distribution through catalyst grains impacts overall kinetics significantly.
- Size of supported gold nanoparticles influences the Au/Al2O3 activity.
- At low Au:glucose ratio reaction rate over Au/C is higher than over Au/Al2O3.