Nano-Au/CeO2 catalysts for CO oxidation: Influence of dopants (Fe, La and Zr) on the physicochemical properties and catalytic activity.

Highlights: [•] Fe3+, La3+ and Zr4+cations were successfully incorporated into CeO2 lattice. [•] Doped CeO2 showed a beneficial effect toward gold particle size than pure CeO2. [•] CO oxidation activity of Au is strongly dependent on the nature of supports. [•] Au/CeO2–ZrO2 catalyst exhibited a high CO oxidation activity. [•] Adsorbed carbonates showed a negative effect toward CO oxidation activity. [ABSTRACT FROM AUTHOR]