Removal of NO_x and Diesel Soot Particulates Catalyzed byPerovskite-type Oxide La_(0.9)K_(0.1)CoO_3

• 作 者: 王伟 ZHAN Reggie
• 机 构: Automobile Engineering School Wuhan University of Technology,Wuhan 430070,China,Automobile Engineeri
• 出 处: Journal of Wuhan University of Technology(Materials Science
• 发表日期: 2006年01期
• 关键词: Diesel coated powders ignition perovskite slurry calcined tight diesel constitut

The catalytic performance of perovskite composite oxide catalyst La_ 0.9 K_ 0.1 CoO_3 coated on catalyst supports by traditional solid state reaction method and sol-gel method were investigated by a series of experiments. The result shows that the catalytic performance of the La_ 0.9 K_ 0.1 CoO_3 perovskite composite oxide catalyst synthesized by sol-gel method is superior to that synthesized by solid state reaction method, having lower ignition temperature of the diesel soot particulates, lower start temperature of NO_x treatment, and lower concentration of byproduct CO.

The catalytic performance of perovskite composite oxide catalyst La_0.9 K_0.1 CoO_3 coated on catalyst supports by traditional solid state reaction method and sol-gel method were investigated by a series of experiments. The result shows that the catalytic performance of the La_ 0.9 K_ 0.1 CoO_3 perovskite composite oxide catalyst synthesized by sol-gel method is superior to that synthesized by solid state reaction method, having lower ignition temperature of the diesel soot particulates, lower start temperature of NO x treatment, and lower concentration of byproduct CO.