Presidential Young Investigator Award/Fundamental Kinetic Processes at the Gas-Solid Interface

脉冲分子束、表面红外光谱和表面光声光谱的结合将用于研究表面上基本化学反应的动力学。吸附物扩散、岛屿形成、缺陷晶格位置的捕获-解吸过程和双分子表面结合反应将是研究的过程之一。要研究的系统包括一氧化碳、一氧化氮和一些大分子系统。该研究将使用一系列单晶衬底，包括周期性台阶表面。这项研究将使这些重要的表面过程的机制得到更好的理解。这项为期五年的持续资助给予马里兰大学帕克分校的罗伊特-罗比教授作为总统青年研究员的支持，旨在促进她作为基础领域的独立研究员快速有效地成长气固界面上的动力学过程。这项研究在分析和表面化学的一般领域，有望提供对表面过程的更好理解，这对催化等应用将是重要的。

A combination of pulsed molecular beam, surface infrared spectroscopy, and surface optoacoustic spectroscopy will be used to investigate the kinetics of fundatmental chemical reactions on surfaces. Adsorbate diffusion, island formation, trapping-desorption processes at deffect lattice sites, and bimolecular surface combination reactions will be amongst the processes to be investigated. Systems to be studied include carbon monoxide and nitric oxide and some large molecular systems. A range of single crystal substrates will be used in the study, including periodically-stepped surfaces. The investigation will enable the mechanism for these important surface processes to be better understood. %%% This five year continuing grant to the University of Maryland at College Park for support of Professor Reutt-Robey as a Presidential Young Investigator is designed to promote her rapid and effective growth as an independent researcher in the area of fundamental kinetic processes on the gas-solid interface. The research, in the general area of Analytical and Surface Chemistry, promises to provide a better understanding of surface processes which will be important for applications such as catalysis.