标题：Synthesis and Activity Evaluation of Ce-Mn-Cu Mixed Oxide Catalyst for Selective Oxidation of CO in Automobile Engine Exhaust: Effect of Ce/Mn Loading Content on Catalytic Activity
期刊名称：Advances in Science and Technology Research Journal
印刷版ISSN：2080-4075
电子版ISSN：2299-8624
出版年度：2018
卷号：12
期号：1
页码：260-266
DOI：10.12913/22998624/81190
语种：English
出版社：Society of Polish Mechanical Engineers and Technicians
摘要：A series of Mn-doped CeO2-CuO catalyst (CeO2-MnOx-CuO) (Ce/Mn molar ratio of 0.5, 1.0 2.0 and 3.0) were prepared using co-precipitation method for the selective oxidation of CO in automobile engine exhaust. The content of copper was 5.0 wt. % in each sample. Catalysts were installed on the automobile engine exhaust and CO amount was recorded with help of CO sensor, with and without the catalyst. The catalytic converter efficiency was estimated for each catalyst through efficiency formula. It was observed that Ce/Mn catalyst with a molar ratio of 2.0 shows the maximum efficiency (88.35%). Stability of conversion process was analyzed by plotting the CO amount with respect to time. The catalyst with Ce/Mn molar ratio of 2.0 performed the most streamline conversion process with least deviations.
关键词：catalytic activity;co-precipitation;catalytic converter;base metal oxide catalyst;CO sensor
