氧化锆负载氧化铁催化剂上CO加氢反应的研究钾,锰,镧,铈的助剂作用

应用Ｘ－射线衍射，程序升温还遥，穆斯堡尔谱以及ＣＯ＋Ｈ２催化反应性能测试等手术研究了Ｋ，Ｍｎ，Ｌａ，Ｃｅ四种助剂对Ｆｅ２Ｏ３／ＺｒＯ２催化剂结构，还原行为以及ＣＬ＋Ｈ２反应催化性能的影响。

Hydrogenation of CO on Zirconia Supported Iron Catalysts Promoting Effects of Potassium,Manganese,Lanthanum and Cerium Oxides

The structure,reduction behavior and catalytic properties of Fe_2O_3/ZrO_2 catalysts promoted with K,Mn, La and Ce ions, respectively, have been studied by XRD, TPR Mossbauer spectroscopy, and CO hydrogenation catalytic reaction.It is shown that addition of the above ions exerts great influence on the catalytic properties of the catalyst. In all cases, the specific activities of Fe_2O_3/ZrO_2 for CO hydrogenation are enhanced, but the change in selectivity is different from one to another. Based on the nature of the interactions between the additives and the active components,the promoting effects of these additives are discussed.