【摘 要】
：
The simultaneous removal of NOx and particulate matter(PM) from diesel exhaust is investigated over a mixed metal oxide catalyst of La0.9 K0.1 CoO3 loaded on γ
【机 构】
：
Institute of Internal Combustion Engine
【基金项目】
：
国家自然科学基金;GM-China Scientific Research Foundation;Research Fundition for the Doctoral Program of Higher Education;中国博士后科学基金
论文部分内容阅读
The simultaneous removal of NOx and particulate matter(PM) from diesel exhaust is investigated over a mixed metal oxide catalyst of La0.9 K0.1 CoO3 loaded on γ-Al2O3 spherules with the assistant of plasma. It was found that NOx was reduced by PM in oxygen rich atmosphere, the CO2 and N2 were produced in the same temperature window without considering the N2 formed by plasma decomposition. As a result, the temperature for the PM combustion decreases and the reduction efficiency of NOx to N2 increases during the plasma process, which indicated that the activity of the catalyst can be improved by plasma. The NOx is decomposed by plasma at both low temperature and high temperature. Therefore, the whole efficiency of NOx conversion is enhanced.
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