分子探针法研究邻二甲苯氧化反应助催化剂在载体表面的分布

The Study of Promoter Distribution on the Surface of Catalytic Support in the Oxidation of o-Xylene by Method of Molecular Probe

本文用分子探针法测定SiO_(2)、1-Al_(2)O_(5)·SiO_(2)和2-Al_(2)O_(3)·SiO_(2)三种载体的表面结构,进一步研究、分析活性组分的分布,从而推出催化性能发生明显变化的可能原因。(一)实险部分1.不可逆吸附量的测定和计算分别按文献[1]和[2]中的方法进行。

The method of Melecular Probe to determine the surface structure of three supporters was described.The influence of adsorption center groups of supporters on the distribution of catalytic promoter and the result of significant difference in catalyst characteristics were discussed.