Conventional supported Pt catalysts have often been prepared by loading Pt onto commercial supports, such as SiO2
, and carbon. These catalysts usually have simple metal-support (i.e.
) interfaces. To tune the catalytic performance of supported Pt catalysts, it is desirable to modify the metal-support interfaces by incorporating an oxide additive into the catalyst formula. Here we prepared three series of metal oxide-modified Pt catalysts (i.e.
, and Pt/MOx
, where M = Al, Fe, Co, Cu, Zn, Ba, La) for CO oxidation. Among them, Pt/CoOx
, and Pt/CoOx
showed the highest catalytic activities. Relevant samples were characterized by N2
adsorption-desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), H2
temperature-programmed reduction (H2
-TPR), X-ray photoelectron spectroscopy (XPS), CO temperature-programmed desorption (CO-TPD), O2
temperature-programmed desorption (O2
-TPD), and CO2
temperature-programmed desorption (CO2
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