Engineering Research Equipment: Sample Introduction Chamberfor Photoelectron Spectroscopy

工程研究设备：光电子能谱进样室

• 批准号: 8704610
• 负责人: Raymond Gorte
• 金额: $ 1.16万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-01 至 1988-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8704610&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Sample; Introduction

A chamber for sample preparation and transfer is being added to an existing photoelectron spectrometer. This equipment will be used to study catalysts consisting of thin films on oxide substrates. Thin metal films on various oxides will be used to examine changes in the electronic levels of the metal following adsorption and to determine reasons for differences in the properties of metal catalysts on different supports. Thin oxide films on other oxides will be examined to determine the nature of intermediates formed on mixed-oxide, acid catalysts. These systems are simplified models of classes of catalysts widely used in both production chemicals and refining of petroleum. Better understanding of the energetics involved in their behavior is an important step toward designing new catalysts.

用于样品制备和转移的腔室正在添加到现有的光电子光谱仪中。 该设备将用于研究由氧化物底物上的薄膜组成的催化剂。 在吸附后，将使用各种氧化物上的薄金属膜来检查金属的电子水平的变化，并确定金属催化剂在不同支持上的性质差异的原因。 将检查其他氧化物上的薄氧化物膜，以确定在混合氧化物，酸催化剂上形成的中间体的性质。 这些系统是在生产化学品和石油精炼中广泛使用的催化剂类别的简化模型。 更好地了解其行为所涉及的能量学是设计新催化剂的重要一步。