The Relationship Between Adsorption Structure and Surface Reactivity: Thiols and Alcohols to Rh Surfaces

吸附结构与表面反应性的关系：硫醇和醇在Rh表面的吸附结构与表面反应性的关系

• 批准号: 9006024
• 负责人: Cynthia Friend
• 金额: $ 34万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1995-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9006024&HistoricalAwards=false
• 关键词: Relationship; Between; Adsorption; Structure; Surface

This grant is in the general field of analytical and surface chemistry and in the subfield of surface chemical and kinetic studies of molecular transformations at single crystal surfaces. Professor Cynthia Friend of Harvard University will study the adsorption kinetics of alcohol and thiol molecules at rhodium single crystal surfaces. The understanding of this chemistry will advance the study of poisoning on catalyst surfaces. The study of oxidation and sulfidation of surfaces from organometallic surface chemistry allows understanding of these surfaces for adhesion and corrosion protection. Thiolate and alkoxide intermediate adsorption structure and kinetics will be studied using synchrotron radiation, photoemission and vibrational spectroscopies, in concert with temperature programmed desorption. The effects of coverage induced changes in adsorbate structure and desorption kinetics will be followed. The importance of the oxygen and sulfur heteroatom in C-O (S) linkages, vis a vis the Rh-O (S) bond strength will be investigated. Kinetically important intermediates will be investigated. Taken together, these studies will impact broadly on active metal surface chemistry applied to complex organic molecular adsorbates.

这项资助是在一般领域的分析和表面 表面化学和动力学领域 单晶分子转变的研究 表面。 哈佛大学的辛西娅·弗兰德教授将 研究醇和硫醇分子的吸附动力学 铑单晶表面。 理解本 化学将促进催化剂中毒的研究 表面。 表面氧化和硫化的研究 从有机金属表面化学可以理解， 这些表面用于粘附和防腐蚀。 硫醇盐和醇盐中间吸附结构和 将使用同步加速器辐射来研究动力学， 光电发射和振动光谱，与 程序升温脱附 覆盖范围的影响 吸附质结构和解吸动力学的诱导变化 将被跟踪。 氧和硫的重要性 C-O（S）键中的杂原子，维斯维斯Rh-O（S）键 强度将进行调查。 动力学重要性 将对中间体进行研究。 综上所述各项 研究将广泛影响活性金属表面化学 应用于复杂有机分子吸附物。