Solvent Effects in Electron-Driven Chemistry of Adsorbed Halogenated Compounds

Madey/Rutgers在分析和表面化学项目的支持下，Madey教授和他在罗格斯大学物理和天文学系的同事们正在研究吸附在表面和水、氨和其他物质薄膜中的卤化分子的电子驱动化学。 强调共吸附溶剂分子的作用的反应机制和反应速率正在审查。 飞行时间电子刺激解吸离子角分布（TOF-ESDIAD）的测量被用来表征的电子刺激解吸和解离过程中的极性和非极性溶剂物种的存在下，在凝聚的薄膜中的卤化分子。 共吸附影响电子诱导反应的基本机制进行了研究。 从这些研究中获得的信息有助于了解臭氧消耗和环境补救的机制。电子辐照驱动的化学反应过程是Madey教授及其同事的研究重点。 通过测量薄膜和表面的电子辐照的离子产物的角分布，获得关于吸附的含卤素物种的解吸和分解的机制的信息。 这些信息对于了解涉及含卤素分子的环境和大气化学过程非常重要。

AbstractCHE-0315209Madey/RutgersWith the support of the Analytical and Surface Chemistry Program, Professor Madey and his coworkers in the Rutgers University Department of Physics and Astronomy are examining electron driven chemistry of halogenated molecules adsorbed on surfaces and in thin films of water, ammonia, and other species. Emphasis on the role of coadsorbed solvent molecules on mechanisms of reaction and rates of reaction are being examined. Time of flight electron stimulated desorption ion angular distribution (TOF-ESDIAD) measurements are used to characterized the electron stimulated desorption and dissociation processes for halogenated molecules in the presence of polar and non-polar solvent species in the condensed thin films. Fundamental mechanisms by which the coadsorbate influences electron induced reactions are examined. Information from these studies is useful for understanding mechanisms of ozone depletion and environmental remediation. Chemical reaction processes driven by electron irradiation are the focus of the research of Professor Madey and his coworkers. By measuring the angular distribution of ion products of electron irradiation of thin films and surfaces, information about the mechanisms of desorption and decomposition of adsorbed halogen containing species is obtained. This information is important in developing an understanding of environmental and atmospheric chemical processes involving halogen containing molecules.