Preparation of Ce _x Zr_1-x O₂ by Different Methods and Its Catalytic Oxidation Activity for Diesel Soot.

ABSTRACT: Novel Ce _x Zr_1-x O₂ (x = 0.67, 0.8, 0.9, 1.0) catalysts were designed and synthesized by solvothermal, calcination, and sol-gel methods and were used to catalyze oxidation of soot from diesel vehicle exhaust. The influence of catalysts synthesized by different methods and Ce/Zr molar ratios on the performance was investigated. These catalysts were characterized by XRD, N₂ adsorption-desorption, FT-IR, TEM, XPS, H₂-temperature programmed reduction (TPR), and O₂-temperature programmed desorption (TPD) techniques. The results indicated that Ce_0.8Zr_0.2O₂ prepared by the calcination method has excellent activity and stability at low temperature. The soot ignition point is 322

SUBMITTER: Chen W 

PROVIDER: S-EPMC9118398 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature