Promotion Effects of Ce-Doping on Catalytic Oxidation of Ethane over Pt/CexTi1−xO2

The catalytic oxidation of VOCs is widely acknowledged as the most available technology to reduce air pollution. Among catalysts for VOCs, 1 wt%-Pt/TiO2 using metal a doping element have shown amazing potential in many fields. However, achieving high performance at relatively low temperatures based on activation molecules still formidable challenge owing activity being highly dependent temperature. Here, role rare earth Ce ethane was studied by preparing Pt/CexTi1−xO2 (x = 0, 0.002, 0.005, 0.01, 0.02, and 0.05) catalysts. When Ce/(Ce+Ti) molar ratio Pt/Ce0.01Ti0.99O2 achieved 90% conversion 436 °C. This reaction temperature 15% lower than that Pt/TiO2. characterization results show caused lattice expansion TiO2 its distortion brought about oxygen vacancies. Additionally, appropriate amount Ce-doping can alter interaction between active component Pt carrier TiO2, thereby improving concentration surface species catalyst. These provide foundation design under mild operating conditions.