汽车尾气净化催化剂的电子探针分析

Using the Electron Probe Analyze the Catalyst Purifying Waste Gas of an Auto

本文采用电子扫描术测量催化剂中活性金属粒子－铂（Ｐｔ）的分布状态。介绍了试样的制作，在试样的几个部位上分析了三种催化剂的铂离子浓度，并给出铂浓度的分布规律。文中最后指出该测量方法的局限性。

In this paper,with the technology of scaning electric microscope,we measured the distribution of the active metal particle-Pt,existing in the catalysts;and we present the preparation of a samples. we analyzed the Pt Particles density of three catalysts different content of Pt,on several point. The result show clearly the distribution law of Pt and the limitation of the measure method.