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本研究采用共沉淀方法制备出四种催化剂 ,Cu Mn1 .36 OX、Ce/ Cu Mn1 .36 Ox、Au/ Cu Mn1 .36 Ox 和 Au-Ce/ Cu Mn1 .36 Ox.在 2 0 0℃时 ,对催化剂进行了 6h的氧气氛处理 ;用扫描电镜和比表面测定对催化剂进行了表征 ;考察了催化剂对 CO氧化反应的催化活性 .结果表明 ,在 Cu Mn1 .36 Ox 中掺入稀土元素 Ce大大增加了催化剂的比表面 ,Au在催化剂表面的分散度越高其活性越好 ,氧气氛中处理 6h的 Au-Ce/ Cu Mn1 .36 Ox 对 CO氧化反应的催化活性最好 .
In this study, coprecipitation method was used to prepare four kinds of catalysts, Cu Mn1 .36 OX, Ce / Cu Mn1 .36 Ox, Au / Cu Mn1 .36 Ox and Au-Ce / Cu Mn1.36 Ox. , The catalyst was treated with oxygen atmosphere for 6h, the catalyst was characterized by scanning electron microscopy and specific surface measurement, and the catalytic activity of the catalyst for CO oxidation was investigated. The results show that the rare earth elements Ce Greatly increased the specific surface area of the catalyst. The higher the dispersion of Au on the surface of the catalyst, the better its activity. The Au-Ce / Cu Mn1 .36 Ox treated in an oxygen atmosphere for 6h had the best catalytic activity for CO oxidation.