Читать книгу Amorphous Nanomaterials - Lin Guo - Страница 35

The XAFS method is the most effective way to explore the structure of amorphous materials. In this chapter, we give a brief introduction of XAFS, including its theory and application. Through these published papers we incited, we can find out that with the development of computer science, some limited conditions to the EXAFS including in-situ test in the past become available. In fact, the XAFS has paradigms of frontier sciences and technologies for catalysts, nanoparticles, and surfaces, such as time-solved analysis of operando chemical states, short-lived dynamics, in-situ imaging of real spaces, and spatially resolved analysis of amorphous materials. With such a powerful tool to reveal the short-range structure and core-level energy, amorphous material research will get a rapid development.

Figure 2.14 In situ XAS characterization of CoV-UAH. (a) and (b) Co K-edge XANES data collected on the initial state. (c) and (d) V K-edge XANES data collected on the initial state. Source: Reproduced with permission from Liu et al. [112]. Copyright 2018, The Royal Society of Chemistry.