Removal of NOx and diesel soot particulates catalyzed by perovskite-type oxide La0.9K0.1CoO3

Wang Wei; Du Chuanjin; Xu Xiang; Zhan Reggie

doi:10.1007/BF02861471

Journal of Wuhan University of Technology Materials Science Edition ›› 2006, Vol. 21 ›› Issue (1) : 57 -59. DOI: 10.1007/BF02861471

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Removal of NO_x and diesel soot particulates catalyzed by perovskite-type oxide La_0.9K_0.1CoO₃

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Abstract

The catalytic performance of perovskite composite oxide catalyst La_0.9 K_0.1 CoO₃ 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 CoO₃ 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 by-product CO.

Keywords

perovskite composite oxides / La_0.9 K_0.1 CoO₃ / sol-gel method / diesel waste gas cleaning

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Wang Wei, Du Chuanjin, Xu Xiang, Zhan Reggie. Removal of NO_x and diesel soot particulates catalyzed by perovskite-type oxide La_0.9K_0.1CoO₃. Journal of Wuhan University of Technology Materials Science Edition, 2006, 21(1): 57-59 DOI:10.1007/BF02861471

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