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本讲内容是介绍场致发射电子显微镜(FEM)和场致发射离子显微镜(FIM)以及最近应用并迅速发展的扫描型电子显微镜(SEM),它是通过观测受到外部强电场的表面所发射的电子或离子,来研究催化剂表面的几何学结构和活性中心上吸附的微观情况。
This talk is a scanning electron microscope (SEM) that introduces field-emission electron microscopy (FEM) and field-emission ion microscopy (FIM) as well as its recent and rapid development by observing the surface emitted by an externally strong electric field Electrons or ions to study the geometry of the catalyst surface and the microscopic conditions of adsorption on the active site.