A General Approach to Mesoporous Metal Oxide Microspheres Loaded with Noble Metal Nanoparticles

摘要

Noble metal nanoparticles are widely used as catalysts in energy processing, chemical production, and pollution control. They are usually dispersed finely on solid oxide supports to prevent agglomeration, particle growth, and therefore a decrease in the total surface area. Moreover, metal oxide supports can also play important roles in catalytic reactions through synergistic interactions with loaded metal nanoparticles. For example, bonding between Ti atoms of titania supports and Au atoms of Au nanoparticles can activate Au nanoparticle catalysts during CO oxidation.