Cu-Ce-La-Ox as efficient CO oxidation catalysts: Effect of Cu content

Nanograins of Ce-La-xCu-O mixed metal oxides (where x = 3, 5, 7, 10, 20 at.%), of approximately 16 nm2 area size, and having all the metal cations homogeneously distributed, are tested as ternary catalytic materials towards the CO oxidation in the 100–475 °C range. Preservation of the cubic ceria lattice structure in those catalysts following La3+ (heavy) and Cu2+ (light) metal cations doping is confirmed based on the powder X-ray diffraction...