应用高分辨电子显微术对ZnFe_2O_4型催化剂的晶格象进行了初步探讨,发现反应前的晶相中有一定的晶格缺陷,包括位于晶粒边缘部位的晶格扭曲及晶粒内部的生长缺陷。而反应后的晶格象中却比较不容易看到明显的缺陷,晶格中原子排列比较完整。这一研究结果,为研究该催化剂的催化活性与其晶体结构之间的关系提供了重要信息。 The crystal lattice of ZnFe_2O_4 catalyst was investigated by high resolution electron microscopy. It was found that there were some lattice defects in the crystalline phase before reaction, including the lattice distortion at the edge of the grain and the growth inside the grain defect. However, after the reaction of the lattice image is not easy to see obvious defects, lattice arrangement of atoms in a more complete. The results of this study provide important information for studying the relationship between the catalytic activity of the catalyst and its crystal structure.