کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1631004 | 1006615 | 2015 | 6 صفحه PDF | دانلود رایگان |
Nanosized CeO2-CuO2 (CeCu, 2:1) and CeO2-Al2O3 (CeAl, 2:1) were synthesized by co-precipitation from nitrate precursors using ammonia solution (NH4OH) as the precipitating agent. The catalysts were calcined in air at 500°C for 4 h to evaluate the thermal stability. The techniques including XRD and DLS were used for catalyst characterization. A Thermo gravimetric/Differential Thermal Analyzer (TG/DTA) was used to determine the catalytic efficiency and soot oxidation reactions. Compared with Ce-free sample, Ce-composite increases the redox properties and the amount of surface lattice oxygen species of the catalyst. The Ce-composite samples exhibited excellent soot catalytic combustion performance by decreasing activation energy of soot oxidation.
Journal: Materials Today: Proceedings - Volume 2, Issue 9, Part A, 2015, Pages 4451-4456