杂原子进入分子筛骨架结构的波谱学判据

An Introduction on Spectroscopy Identification of Framework Hetero-atom in Molecular Sieves

概括了杂原子取代的分子筛内骨架杂原子的波谱学鉴定方法。根据杂原子进入骨架后所引起的晶体结构、表面酸性、电子跃迁规律、配位环境等微观性质的变化 ,重点讨论了 XRD、FT- IR、DRUV- Vis、Raman、MAS- NMR、XAFS、ESR和 XPS等波谱学方法在鉴别骨架杂原子时的应用原理和方法。

The spectroscopy identification methods for framework hetero-atom in the hetero-atom substituted molecular sieves are summarized. By monitoring the microcosmic properties changes such as crystal structure, surface acidity, electron transition rule and coordination surrounding, which caused by the incorporation of hetero-atom into sieves framework, many spectroscopy methods such as XRD, FT-IR, DR UV-Vis, Raman, MAS-NMR, XAFS, ESR and XPS can be used to identify the framework hetero-atom.