Reactions of CH3 and C1 on Cu/Si Model Alloy Surfaces: Understanding the Direct Synthesis

这项研究项目由分析和表面化学计划以及与工业的学术联系机会(GOALI)计划支持，研究了使用铜催化剂从硅直接合成有机硅前体的分子水平机理，即Muller-Rochow过程。这项研究结合了坦普尔大学在Strongin教授的指导下进行的UHV吸附研究，以及罗格斯大学的辛克教授和同事对反应物表面进行的STM测量。道康宁公司的科学家根据反应机理的分子水平研究结果，参与了该小组设计的催化剂的反应动力学和选择性的评估。从这些研究中获得的理解被直接应用于穆勒-罗周工艺催化剂的预测设计。从这项工作中获得的信息将对具有重要商业意义的有机硅行业产生直接影响。在铜/硅表面上直接合成有机硅前驱体的分子水平机理研究是本课题研究的重点。铜催化吸附的基础研究、反应硅表面的形态研究和操作催化剂的动力学研究相结合，将提供关于这一重要技术过程的信息。坦普尔大学、罗格斯大学和道康宁公司的研究人员都参与了这一研究项目。

This research project, supported by the Analytical and Surface Chemistry Program and the Grant Opportunities for Academic Liaison with Industry (GOALI) program, addresses the molecular level mechanisms of the direct synthesis of silicone precursors from silicon using copper catalysts, the Muller-Rochow process. The research combines UHV adsorption studies carried out at Temple University under the direction of Professor Strongin, with STM measurements of the reactant surface carried out by Professor Hinch and coworkers at Rutgers University. Scientists at Dow Corning Corporation are involved in the evaluation of reaction kinetics and selectivity of the catalysts designed by the group based on the results of the molecular level investigations of reaction mechanism. Understanding gained from these studies is applied directly in the predictive design of catalysts for the Muller-Rochow process. The information gained from this work will have a direct impact on the commercially important silicones industry. The investigation of the molecular level mechanism of the direct synthesis of silicone precursors on Cu/Si surfaces is the focus of this research project. A combination of basic studies of copper catalyzed adsorption, morphological studies of the reacting silicon surface, and kinetic studies of operating catalysts will provide information about this technologically important process. Researchers at Temple University, Rutgers University, and the Dow Corning Corporation all contribute to this research project.