Investigation of Sorption and NMR Spectroscopy of Xenon Sorbed in Microporous Materials

该基金是在分析和表面化学的一般领域以及催化表面化学的固态核磁共振研究的子领域。Cecil Dybowski教授将使用固态核磁共振方法研究Xe气体在沸石材料上的吸附。通过确定引起化学位移和峰形变化的基本现象，Xe吸附法将被用于探测表面化学。具有特殊表面化学性质的微孔沸石将被用于探测Xe核磁共振的化学位移和动态弛豫。利用扩散测量，表面氧化物结构对弛豫时间的作用将被确定。这将有助于更好地理解吸附的化学性质。

This grant is in the general field of analytical and surface chemistry and in the subfield of solid state nuclear magnetic resonance studies of catalytic surface chemistry. Professor Cecil Dybowski will study the adsorption of Xe gas on zeolite materials using solid state NMR methods. By determining the fundamental phenomena which give rise to chemical shifts and changes in peak shape, the use of the Xe adsorption method to probe surface chemistry will be advanced. Microporous zeolites with particular surface chemistries will be used to probe both chemical shift and dynamic relaxation of Xe nuclear magnetic resonances. Using diffusion measurements, the role of surface oxide structure on relaxation times will be determined. This will lead to a better understanding of the chemistry of adsorption.