Grant for Exploratory Research: Application of HREEls to Metal Oxides and Other Ionic Surfaces.

探索性研究资助：HREEls 在金属氧化物和其他离子表面的应用。

• 批准号: 9117069
• 负责人: Marjorie Langell
• 金额: $ 5万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-15 至 1993-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9117069&HistoricalAwards=false
• 关键词: Grant; Exploratory; Research; Application; HREEls

High resolution electron energy loss spectroscopy (HREELS) is a highly surface sensitive method for determining surface vibrational modes. This method can be used to identify surface chemistry, and in particular the bonding gemometry and molecular symmetry of surfaces and adsorbates on surfaces. Unfortunately the method fails when applied to substrates with a substantial ionic character such as metal oxides. The project attempts to improve the applicability of HREELS to substrates with ionic character by use of a data analysis method that draws heavily on the Maximum Entropy Method from information theory. The approach promises to be nonsubjective and widely applicable. %%% This award is a Grant for Exploratory Research to support the research of Dr. Marjorie A. Langell of the University of Nebraska-Lincoln. The research, in the general area of Analytical and Surface Chemistry, focuses on the application of high resolution electron energy loss spectroscopy to metal oxides and other ionic surfaces. The work promises to enhance the analytical potential of this type of spectroscopy, and thus make an important contribution to the area of surface analysis.

高分辨率电子能量损失光谱（HREELS）是测定表面振动模式的一种高表面灵敏度的方法。该方法可用于识别表面化学，特别是表面和表面吸附物的键合几何和分子对称性。不幸的是，该方法在应用于具有大量离子特性的衬底（如金属氧化物）时失败了。该项目试图通过使用一种数据分析方法来提高HREELS对具有离子特征的基材的适用性，该方法大量借鉴了信息论中的最大熵法。这种方法是非主观性的，适用范围很广。该奖项是一项探索性研究补助金，用于支持内布拉斯加大学林肯分校的Marjorie a . Langell博士的研究。在分析和表面化学的一般领域，研究重点是高分辨率电子能量损失光谱在金属氧化物和其他离子表面的应用。这项工作有望提高这类光谱的分析潜力，从而对表面分析领域做出重要贡献。