Distribution and Dynamic Behavior of Adsorbed Species in Microporous Solids

在这个由化学系资助的实验物理化学项目中，Cynthia Jameson教授将使用氙气核磁共振和分子动力学模拟来确定微孔沸石中基本过程的性质。通过监测氙气如何在沸石中不同大小的笼子之间分配，关于吸附物的扩散性和笼间转移在催化中的潜在作用的长期存在的问题将得到解答。%沸石是具有巨大催化作用的微孔固体，是最重要的商业可用材料类别之一。辛西娅·詹姆森教授(大学伊利诺伊州，芝加哥圈)将把氙气吸附到这些材料中，并使用一系列现代光谱和计算技术来确定氙原子如何在气孔中分布，它们如何从一个地方移动到另一个地方，以及它们在那里停留多长时间。其结果将是对与微孔催化活性相关的动态事件的更好的理解。

In this Experimental Physical Chemistry project, funded by the Chemistry Division, Prof. Cynthia Jameson will use xenon NMR and molecular dynamic simulations to determine the nature of elementary processes in microporous zeolites. By monitoring how xenon is partitioned between cages of different size in the zeolite, long standing questions regarding the diffusivity of adsorbates and the potential role of intercage transfer in catalysis will be answered. %%% Zeolites, microporous solids which have enormous utility as catalysts, are among the most significant commercially available classes of materials. Prof. Cynthia Jameson (Univ. of Illinois, Chicago Circle) will adsorb xenon gas into these materials, and use a battery of modern spectroscopic and computational techniques to determine how the xenon atoms are distributed among the pores, how they move from place to place, and how long they stay there. The result will be an improved understanding of dynamic events related to catalytic activity of the micropores.