The role of Sn in Pt-Sn/CeO2 catalysts for the complete oxidation of ethanol

The Pt-Sn/CeO2 catalysts were found to be highly active for the complete oxidation of ethanol. The addition of tin resulted in the changes in both surface structure of metallic phase and the electronic Pt-Sn interaction, thus promoting the catalytic performances. The electronic configuration of Pt by Sn as well as the formation of PtSn alloy was the key factors in determining the nature of the active sites.