X射线衍射分析用于催化剂研究已经有五十余年的历史,近年来由于X射线仪的新发展以及电子计算机技术的应用,使X射线衍射成为研究催化剂的一种不可缺少的手段。用X射线衍射方法可以取得许多有关催化剂结构特征方面的信息,包括物相组成、晶体类型、晶格参数、晶格变形、晶粒大小与分散度等晶体结构特征。研究催化剂的晶体结构特征也是研究其化学特性的一种必要的补充。 X-ray diffraction analysis has been used for catalyst research for more than 50 years. In recent years, due to the new development of X-ray apparatus and the application of computer technology, X-ray diffraction has become an indispensable means to study the catalyst. X-ray diffraction methods can be used to obtain a lot of information on the structural characteristics of the catalyst, including phase composition, crystal type, lattice parameters, lattice deformation, grain size and dispersion and other crystal structure characteristics. Investigating the crystalline structure of a catalyst is also a necessary complement to studying its chemical properties.