Testing Ensemble Effects in Hydrocarbon Conversion Reactions

这个项目是在一般地区的分析和表面 化学和多相催化领域。 这 研究计划将调查整体（场地大小） 使用吸附的表面催化反应的要求 铋原子作为惰性位点封闭剂。 这些研究将 重点是定量地确定一个 铂上烃转化反应的数量 系统压力接近一个大气压时的单晶表面 和表征含碳残余物。 这些研究结果与来自 类似的研究在真空中将有助于开发一种 反应机理的基本认识， 烃类转化反应是重要的 化学和石油工业，以及在发展中国家， 改进的催化剂。

This project is in the general area of analytical and surface chemistry and in the subfield of heterogeneous catalysis. This research program will investigate the ensemble (site-size) requirements for surface-catalyzed reactions using adsorbed bismuth atoms as inert, site-blocking agents. The studies will focus on determining quantitatively the ensemble effects for a number of hydrocarbon conversion reactions on platinum single-crystal surfaces at system pressures near one atmosphere and in characterizing the carbonaceous residue. Correlation of the results of these studies with those from similar studies in ultrahigh vacuum will assist in developing a fundamental undestanding of the reaction mechanisms of hydrocarbon conversion reactions that are of importance in the chemical and petroleum industries and in the development of improved catalysts.