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Structural Characteristics and Catalytic Performance of CeAl Nanoparticles in Soot Oxidation

Journal: International Journal of Science and Research (IJSR) (Vol.3, No. 9)

Publication Date:

Authors : ; ;

Page : 350-353

Keywords : CeO2- Al2O3; co-precipitation; diesel soot oxidation; catalytic efficiency;

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CeO2-Al2O3 mixed oxide was prepared by co-precipitation from nitrate precursors using 25 % ammonia solution (NH4OH) as the precipitating agent. The catalysts were calcined in air at 500 C and 800C for 4h to evaluate the thermal stability and compare catalytic activity. The catalysts were characterized by XRD and DLS techniques. Catalytic activity was determined using a Thermo gravimetric/Differential Thermal Analyzer (TG/DTA). CeAl nanosized catalysts calcined at 500C exhibited superior redox properties of the catalyst relative to the one calcined at 800C. The Ce-Al composite samples exhibited good soot catalytic combustion performance by decreasing soot oxidation temperature.

Last modified: 2021-06-30 21:07:44