Supported perovskite LaCu0.3Mn0.7O3-xCeO2 (x= wt.%) catalysts were prepared via sol-gel method. Different amount of ceria were used for preparation of the catalysts in order to investigate the effect of CeO2 in the catalytic behavior of the corresponding catalyst. With More
Supported perovskite LaCu0.3Mn0.7O3-xCeO2 (x= wt.%) catalysts were prepared via sol-gel method. Different amount of ceria were used for preparation of the catalysts in order to investigate the effect of CeO2 in the catalytic behavior of the corresponding catalyst. With the aim of comparison, the perovskite without ceria and pure ceria were also synthesized and calcined exactly at the same condition applied for preparation of the other catalysts. The prepared catalysts were characterized by using X-ray powder diffraction, surface area analysis) BET(, and scanning electron microscopy. Catalytic performance of the samples was investigated in NO reduction with CO as reductant. The synergistic effect of both perovskite and ceria in the catalyst led to catalytically decreased on-set temperature to about 150 °C. According to the characterization analysis, with having LCM37 and ceria in the bulk of the catalysts, the dispersion of the elements was homogenous. Surface morphology was homogenous with respect to dispersion and size of the particles. On the other hand, the catalytic performance varies slightly according to changing the percentage of ceria which has been used. The better performance was observed for the catalyst containing 25 wt.% of ceria.
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