Oxidation of Metal Clusters

金属团簇的氧化

• 批准号: 8900938
• 负责人: Thomas DeVore
• 金额: $ 8.09万
• 依托单位: James Madison University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-05-15 至 1992-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8900938&HistoricalAwards=false
• 关键词: Oxidation; Metal; Clusters

This research, part of the Experimental Physical Chemistry Program, utilizes laser based spectroscopies to investigate the reactions between first row transition metal atoms, dimers, and trimers with various oxidants. Also, the reactions of carbon monoxide entrained metal atoms with oxidants like ozone or the halogens will be surveyed. The goals of this work will be to establish reaction energetics and to obtain electronic structure information about the molecules involved in these reactions. Completion of this project is expected to provide new data which will offer new insights into the dynamics of metal surface oxidation and catalytic oxidation processes. A combination of chemiluminescent probes and mass spectrometry will be used to explore the dynamics of metal cluster oxidation, to establish optical signatures for the metal cluster oxides and halides, and to study the electronic structure of transition metal clusters. A high flux continuous flow metal entrainment source will be employed. In addition, the possibility of using a continuous-flow metal supersonic expansion or a laser vaporization based pulsed cluster source will be explored.

这项研究是实验物理化学计划的一部分，利用基于激光的光谱来研究第一排过渡金属原子、二聚体和三聚体与各种氧化剂之间的反应。此外，还将考察一氧化碳夹带金属原子与臭氧或卤素等氧化剂的反应。这项工作的目标将是建立反应能量学，并获得有关参与这些反应的分子的电子结构信息。该项目的完成预计将提供新的数据，这些数据将为金属表面氧化和催化氧化过程的动态提供新的见解。化学发光探针和质谱学的结合将被用来探索金属团簇的氧化动力学，建立金属团簇氧化物和卤化物的光学特征，并研究过渡金属团簇的电子结构。将采用高通量连续流动金属夹带源。此外，还将探索使用连续流动金属超音速膨胀或基于激光蒸发的脉冲团簇光源的可能性。