Studies of the Acidity of High-Silica Zeolites

高硅分子筛酸性的研究

• 批准号: 8720266
• 负责人: Raymond Gorte
• 金额: $ 26.22万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1991-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8720266&HistoricalAwards=false
• 关键词: Studies; Acidity; Silica; Zeolites

The adsorption of simple organic molecules which can undergo acid-catalyzed chemistry will be examined in high-silica zeolites using a variety of techniques, including simultaneous temperature-programmed desorption and thermal gravimetric analysis, infrared spectroscopy, and carbon-13 nuclear magnetic resonance. The purpose of these adsorption studies will be to study the interaction of intermediates with the zeolite lattice and ultimately to formulate structure/reactivity relationships which can give insight into the chemistry occurring at the acid sites. Zeolites with different crystal structures and with different trivalent cations incorporated into the lattice will be studied in order to determine how these properties affect the properties of the acid sites. The experiments to be conducted should provide a basis for a more detailed understanding of the acidity of high-silica zeolites.

简单有机分子的吸附， 酸催化化学将在高硅沸石中进行研究 使用多种技术，包括同时 程序升温脱附-热重 红外光谱和碳13核磁共振 共振 这些吸附研究的目的是 研究中间体与沸石晶格的相互作用 并最终形成结构/反应性关系 这可以让我们深入了解酸中发生的化学反应， 网站. 具有不同晶体结构和 结合到晶格中的不同三价阳离子将 研究，以确定这些属性如何影响 酸性位点的性质。 要进行的实验 应该为更详细地了解 高硅沸石的酸性。