NMR Studies of Solid Surfaces

固体表面的核磁共振研究

• 批准号: 9021003
• 负责人: Gary Maciel
• 金额: $ 28.56万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-15 至 1994-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9021003&HistoricalAwards=false
• 关键词: NMR; Studies; Solid; Surfaces

The research, in the general area of Analytical and Surface Chemistry, focuses on a range of nuclear magnetic resonance (NMR) techniques applied to the study of the surfaces of silica and related materials. The study promises to enhance our understanding of these important materials, the basic components of soils and rocks. Silca surfaces will be directly examined by 1H, 29Si and 17O NMR techniques, and indirectly examined by chemically modifying the surface and then using NMR. By varying the size of the chemically modifying molecules surface topography, and distincitions between internal pore or channel surfaces and the external surfaces will be investigated. The chromatographically important C18-silica system will be studied by a combination of deuterium line-shape experiments, relaxation experiments and other methods.

这项研究在分析和表面化学的一般领域，重点是一系列应用于研究二氧化硅和相关材料表面的核磁共振技术。这项研究有望增进我们对这些重要物质--土壤和岩石的基本成分--的了解。Silca表面将通过1H、29Si和17O核磁共振技术进行直接检查，并通过对表面进行化学修饰然后使用核磁共振进行间接检查。通过改变化学修饰分子的大小，将研究表面形貌以及内部孔或通道表面与外部表面之间的差异。对具有重要色谱学意义的C18-二氧化硅体系的研究将采用重离子线形实验、弛豫实验等多种方法相结合的方法。