Distribution and Dynamic Behavior of Adsorbed Species in Microporous Solids

微孔固体中吸附物质的分布和动态行为

• 批准号: 9210790
• 负责人: John Morrison
• 金额: $ 35.9万
• 依托单位: University of Illinois at Chicago
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1995-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9210790&HistoricalAwards=false
• 关键词: Distribution; Dynamic; Behavior; Adsorbed; Species

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.

在这个实验物理化学项目中，由 化学部，辛西娅詹姆森教授将使用氙核磁共振 和分子动力学模拟来确定 微孔沸石中的基本过程。通过监测 氙被分隔在不同大小的笼之间， 沸石，关于扩散率的长期存在的问题， 吸附物和笼间转移的潜在作用 催化剂将得到回答。 %%% 沸石，微孔固体，具有巨大的用途， 催化剂是最重要的商业用途之一 可用的材料类别。Cynthia Jameson教授（香港大学 伊利诺伊州，芝加哥圈）将吸收氙气到这些 材料，并使用一组现代光谱和 计算技术来确定氙原子是如何 分布在毛孔中，它们如何从一个地方移动到另一个地方， 以及他们在那里待了多久结果将是一个改进的 理解与催化活性相关的动态事件 的微孔。