NiO－MoO_3／γ－Al_2O_3型低变催化剂磁性与活性的关系

THE MAGNETISM AND ACTIVITY OF NiO-MoO_3/γ-Al_2O_3 WATER GAS SHIFT CATALYST

本文对不同配方及制备方法的ＮｉＯ－ＭｏＯ_３／γ－Ａｌ_２Ｏ_３型催化剂进行了磁性测定，讨论了各种情况下Ｎｉ￣（２＋）的存在状态，并与催化剂的低变活性相对照。证实了Ｎｉ￣（２＋）的存在位置与其本身的含量及ＭｏＯ_３含量，浸Ｎｉ前是否焙烧，Ｋ_２ＣＯ_３的浸渍等均有关，且对活性有明显的影响。

In this paper , Nio-MoO_3/γ-Al_2O_3 water gas shift catalysts had been studied bymeans of magnetic measurements,It was found that the content of active components and the prepa-ration method have significantly influence on sites of Ni￣(2+),simultaneously, the higher activity ofthe catalyst is closely related to the higher concentration of Ni￣(2+) in octahedral sites.