Presidential Young Investigator Award: Studies of MoleculesChemisorbed on Metal Particles

这项研究是实验物理化学计划的一部分，旨在开发催化机制和催化中毒的预测模型。这项研究得到了总统青年研究员（PYI）奖的支持。需要回答的基本问题包括：有多少表面金属原子参与单个吸附分子的成键？单个吸附粒子的金属键合的相对贡献是什么？金属-吸附物配合物的电子结构和几何形状如何随金属簇大小和组成以及其他物质的共吸附而变化？烷烃与选定尺寸的金属团簇的相互作用将被研究。一氧化碳与氢或一氧化氮的共吸附研究也将被研究。时间分辨激光光谱技术将用于获得中间物质的动力学、能级和结构。

This research, part of the Experimental Physical Chemistry Program, is designed to develop predictive models for catalytic mechanisms and catalytic poisoning. This research is supported by a Presidential Young Investigator (PYI) award. Among the fundamental questions to be answered are: How many surface metal atoms participate in the bonding of a single adsorbate molecule?, What are the relative contributions of metal s bonding of a single adsorbed particle? and How do the electronic structure anmd geometry of the metal-adsorbate complex vary with metal cluster size and composition, and with coadsorption of other species? The interaction of alkanes with size-selected metal clusters will be studied. Coadsorption studies of carbon monoxide with hydrogen or nitric oxide will also be studied. Techniques of time resolved laser spectroscopy will be used to obtain the dynamics, energy levels and structures of intermediate species.