Single Crystal Adsorption Microcalorimetry

单晶吸附微量热法

• 批准号: 9610493
• 负责人: Charles Campbell
• 金额: $ 42万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-03-01 至 2002-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9610493&HistoricalAwards=false
• 关键词: Single; Crystal; Adsorption; Microcalorimetry

This research project, supported in the Analytical and Surface Chemistry Program, addresses the thermodynamics of adsorption on well characterized surfaces in a unique way. A direct adsorption single crystal microcalorimeter has been developed by Professor Campbell and his students at the University of Washington which has the sensitivity to directly determine the enthalpy of adsorption of a range of metal on oxide and metal on semiconductor systems. In addition, the adsorption of metals on polymers, and hydrocarbons on platinum are being investigated using this new instrument. This unique information is crucial to the understanding of a variety of important surface processes, ranging from electronic device fabrication to heterogeneous catalysis. In order to understand surface reaction chemistry, which forms the basis of many important interfacial technologies, the basic thermodynamic information about the heats of adsorption of atoms and molecules on surfaces must be known. This basic research effort addresses this question through a unique experimental approach to the direct measurement of these quantities. The results of these investigations will find wide application in technologies including semiconductor processing and catalytic chemistry.

这项研究项目得到了分析和表面化学计划的支持，以一种独特的方式研究了良好特性的表面上的吸附热力学。华盛顿大学Campbell教授和他的学生研制了一种直接吸附单晶微量热计，它具有直接测定一系列金属在氧化物上和金属在半导体系统上的吸附热的灵敏度。此外，正在使用这种新仪器研究金属在聚合物上的吸附以及碳氢化合物在铂上的吸附。这一独特的信息对于理解从电子器件制造到多相催化等各种重要的表面过程至关重要。为了理解构成许多重要界面技术基础的表面反应化学，必须知道原子和分子在表面上的吸附热的基本热力学信息。这项基础研究工作通过一种独特的实验方法直接测量这些量来解决这个问题。这些研究成果将在半导体加工和催化化学等技术中得到广泛应用。