Chapter 3 Electron Vibrational Spectroscopy

摘要: Publisher Summary This chapter deals with the use of electron energy loss spectroscopy (ELLS) to obtain vibrational state species chemisorbed on metals. The describes analysis spectrum adsorbates metallic surfaces. It discusses importance symmetry groups, in order maximum information from EELS data. stresses fact that a surface produces specific changes operations, which are crucial importance. After this introduction, treats simplest case atomic adsorption, by making special emphasis hydrogen adsorption. Both simple nearest neighbor spring model and more elaborated total-energy calculations described. also oxygen adsorption—both molecular. Carbon monoxide (CO) is most popular adsorbate experimentalists. CO Pt(III) as an illustrative example. low stretching frequency systems either due transition metal element or presence alkali