Titanium-supported Ce-, Zr-containing oxide coatings modified by platinum or nickel and copper oxides and their catalytic activity in CO oxidation

► Catalytic active layers on Ti were formed by combination of PEO and impregnation techniques. ► Composites with Pt and oxides of Zr, Ce, Ti, Ni, Cu were obtained and studied. ► Catalytic properties of composites were tested in CO oxidation into CO2. ► Modified composites were compared with those obtained by one-stage PEO technique. ► The paper shows that PEO technique may be applied to form catalytically active oxide systems.