Effect of SiOH/Ag ratio on catalytic activity of Ag/SBA-15 catalysts in CO oxidation reaction
The effect of the pretreatment temperature of the SBA-15 support on the catalytic activity of Ag / SBA-15 catalysts was studied in the CO oxidation reaction. The catalysts were prepared by incipient wetness impregnation. The supports were preliminarily calcined at 500, 700, and 900 oC. The catalysts and supports were investigated by low-temperature nitrogen adsorption, TPD-HO, TPR-H2 and were tested in the CO oxidation reaction. It was found that the calcination temperature of the SBA-15 support affects the nature of the distribution ofsilver and the catalytic activity of the catalysts.