以汽车尾气净化为研究背景,用微反技术考察了铜基多元氧化物催化剂对CO的氧化、NO+CO、甲苯和甲醇燃烧的催化活性,着重研究了铈的存在对负载型Cu-M-O(M=Mn、Fe和Cr)催化剂活性的影响。结果表明,铈作为铜基多元氧化物催化剂的助剂,能不同程度地提高所研究的氧化还原反应的活性;尤其是能明显提高铜基氧化物催化剂在甲醇的催化燃烧,以及在贫氧条件下的CO氧化和甲苯燃烧中的活性。 Taking the purification of automobile exhaust as the research background, the catalytic activity of Cu-based multi-oxide catalysts for CO oxidation, NO + CO, toluene and methanol combustion was investigated by using micro-reverse technology. The effects of cerium on the catalytic activity of Cu- M = Mn, Fe and Cr) catalyst activity. The results show that cerium as a copper-based multi-oxide catalyst additives, to varying degrees, to enhance the activity of the redox reaction; in particular, can significantly improve the catalytic combustion of copper-based oxide catalyst in methanol, as well as in oxygen-depleted conditions Under CO oxidation and toluene combustion activity.