Surface Chemistry of Palladium Monolayers and Thin Films

这个项目是在一般地区的分析和表面 化学和多相催化领域。 的 主要研究者将存款钯单层， 在单晶钽表面上的多层薄膜， 研究这些改变的表面化学性质， 覆盖层。 这项工作将侧重于将以下方面的变化联系起来： 吸附/脱附动力学、化学吸附结合强度和 反应性与几何和电子结构的 钯覆盖层。 关键数据将由高 分辨电子能量损失谱和离子散射 光谱法 这些基础研究有望产生新的化学物质。 对具有新的独特表面的材料设计的深入了解 属性和帮助原子水平的解释， 选择性的合金和金属簇催化剂， 在石油工业中很重要。

This project is in the general area of analytical and surface chemistry and in the subfield of heterogeneous catalysis. The principal investigator will deposit palladium monolayers and multilayer thin films on single crystal tantalum surfaces and study the altered surface chemical properties of these overlayers. The work will focus on correlating changes in adsorption/desorption kinetics, chemisorption bond strength and reactivity with geometric and electronic structure of the palladium overlayer. Critical data will be obtained by high resolution electron energy loss spectroscopy and ion scattering spectrometry. These fundamental studies are expected to produce new chemical insight into the design of materials with new and unique surface properties and to aid the atomic level explanation of the selectivity of alloy and bimetallic cluster catalysts which are important in the petroleum industry.