Abstract
AbstractPure CeO2, Co3O4 and CeO2‐CoOx catalysts were successfully prepared by co‐precipitation method and investigated for toluene oxidation. The introduction of cobalt improved the porous texture and increased the specific surface area of catalysts. The cooperative effect of Co and Ce was characterized by several techniques. The characterization results indicated that CeO2‐CoOx showed the largest concentration of Ce3+, oxygen vacancy and surface adsorbed oxygen due to the generation of more structural defects, resulting in better redox properties. Hence, CeO2‐CoOx exhibited excellent catalytic activity and ideal CO2 selectivity than pure CeO2 and Co3O4.
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