Binding Energies of Adsorbates on Transition Metal Clusters

过渡金属簇上吸附物的结合能

• 批准号: 9423326
• 负责人: Kent Ervin
• 金额: $ 30万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-01 至 1999-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423326&HistoricalAwards=false
• 关键词: Binding; Energies; Adsorbates; Transition; Metal

In this project in the Physical Chemistry program of the Chemistry Division Professor Kent M. Ervin of the Chemistry Department of the University of Nevada at Reno will undertake a series of investigations to measure the binding energies of adsorbates on transition metal clusters. These will be determined as function of cluster size, element, charge state, and adsorbate identity. The experimental methods use guided ion beam reaction and laser photodesorption dynamics techniques. Surface science studies have provided adsorption energies for many adsorbates at various sites on single crystal metal surfaces. For metal cluster systems, however, such data are extremely limited, especially for strongly bound adsorbates and reaction intermediates. Such data are, however, of extreme importance when cluster reactions are to be used for selective chemistry and for the interpretation of reaction mechanisms taking place at surfaces. This research project is designed to provide the data necessary for the characterization of the adsorption sites on the clusters and to interpret kinetic data on cluster reactions in terms of mechanisms and product formation.

在此项目中，内华达大学里诺分校化学系物理化学项目的 Kent M. Ervin 教授将进行一系列研究，以测量过渡金属簇上吸附物的结合能。 这些将被确定为簇大小、元素、电荷状态和吸附物特性的函数。 实验方法采用引导离子束反应和激光光解吸动力学技术。 表面科学研究为单晶金属表面不同位点的许多吸附物提供了吸附能。 然而，对于金属簇系统，此类数据极其有限，特别是对于强结合的吸附物和反应中间体。 然而，当簇反应用于选择性化学和解释表面发生的反应机制时，这些数据极其重要。 该研究项目旨在提供表征簇上吸附位点所需的数据，并从机制和产物形成方面解释簇反应的动力学数据。