Effect of glucose pretreatment on Cu-ZnO-AlO catalyzed CO hydrogenation to methanol.

A series of Cu-ZnO-AlO catalysts (CZA) were prepared by glucose pretreatment and applied for methanol synthesis from CO hydrogenation. The advantages of the glucose pretreatment and the effects of glucose content were investigated by XRD, N physisorption, SEM, NO chemisorption, CO-TPD, H-TPR, TG, and XPS characterization techniques. The influence of glucose pretreatment on the average Cu particle size and the interaction between different components, as well as the effects of the amount of glucose on the Cu specific surface area, the ratio of Cu/Cu and the performance of the catalysts were discussed.