Ag supported on meso-structured SiO2 with different morphologies for CO oxidation: On the inherent factors influencing the activity of Ag catalysts

Morphologies of the SiO2 supports influence the dispersion of the supported Ag species, thus resulting in catalysts with different Ag sizes and active Ag metallic surface areas, which are the determining factors for the activity of the catalysts. With dendritic KCC-1 SiO2 spheres as the support, the migration and agglomeration of the Ag nanoparticles was effectively impeded by the fibrous surface, thus resulting in a catalyst with superior CO oxidation activity.183