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

高分辨电子能量损失谱(HREELS)是一种测定表面振动模式的高灵敏度方法。这种方法可以用来识别表面化学，特别是表面和表面吸附的成键几何和分子对称性。不幸的是，当该方法应用于金属氧化物等具有实质性离子特征的底物时，该方法失败了。该项目试图通过大量借鉴信息论中的最大熵方法的数据分析方法来提高HREELS在具有离子特性的衬底上的适用性。该方法具有非主观性，具有广泛的适用性。这个奖项是探索性研究奖助金，用于支持内布拉斯加州大学林肯分校的Marjorie A.Langell博士的研究。在分析和表面化学的一般领域中，这项研究的重点是高分辨率电子能量损失谱在金属氧化物和其他离子表面的应用。这项工作有望增强这类光谱的分析潜力，从而为表面分析领域做出重要贡献。

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.