氧化铈对负载型氧化铜催化剂的助催化作用

PROMOTIVE EFFECT OF CERIA ADDITIVE ON CuO/Al 2O 3 CATALYSTS

应用ＸＰＳ方法研究了ＣｕＯＣｅＯ２／Ａｌ２Ｏ３催化剂的表面特征，探索了ＣｅＯ２对ＣｕＯ催化剂的助催化作用．结果表明，ＣｅＯ２是较好的助催化组分，在ＣｕＯ催化剂中添加适量的ＣｅＯ２，可促进催化剂表面Ｃｕ＋含量的增加，从而有利于ＣＯ氧化催化活性的提高．

The surface characterization of impregnated Cu Ce O/Al 2O 3 catalysts was investigated by the method of X ray photoelectron spectroscopy. The cerium oxides was a better promoter for catalysts of CuO/Al 2O 3 at the appropriate loading. The presence of CeO 2 increased the Cu + content on the surface of catalysts. So the activity of catalysts for carbon monoxideoxidation can be increased.