Structure and Reactivity of Metal and Inorganic Monolayers on Electrode Surfaces

摘要CHE-0237683 Gewirth/Illinois这项研究项目得到了分析和表面化学计划的支持，重点是电催化和电极修饰的基础研究。由伊利诺伊大学厄巴纳香槟分校的Gewirth教授和他的同事开展的工作检查了低电位沉积修饰表面上氧、过氧化氢和硝酸盐物种电还原过程中的结构-反应性相关性。扫描探针显微镜、表面X射线方法和振动光谱方法的组合被用于研究这些系统。此外，还对新型吸附无机金属氧单分子膜的结构进行了探索。这项工作对与燃料电池和电池技术相关的电催化和电极修饰的机理提供了基本的见解。在分析和表面化学计划的支持下，伊利诺伊大学厄巴纳香槟分校的Gewirth教授和他的团队正在研究金属和无机单层电极表面的结构和反应性。采用光谱和显微相结合的方法，对一系列小分子电还原反应的金属修饰电极的结构和反应活性进行了研究。此外，还研究了多金属氧单分子膜的结构。这项工作的结果有助于加深对重要燃料电池和储能技术的理解。

AbstractCHE-0237683Gewirth/IllinoisThis research project, supported in the Analytical and Surface Chemistry Program, focuses on the fundamental study of electrocatalysis and electrode modification. Work carried out by Professor Gewirth and his colleagues at the University of Illinois-Urbana Champaign examines structure-reactivity correlations in the electroreduction of oxygen, peroxide, and nitrate species at underpotential deposition modified surfaces. A combination of scanning probe microscopy, surface x-ray methods, and vibrational spectroscopy methods are being used to investigate these systems. In addition, the structure of novel adsorbed inorganic oxometallate monolayers are being probed. This work provides fundamental insight into the mechanisms of electrocatalysis and electrode modification relevant to fuel cell and battery technologies. With the support of the Analytical and Surface Chemistry Program, Professor Gewirth and his group at the University of Illinois-Urbana Champaign are examining the structure and reactivity of metal and inorganic monolayer electrode surfaces. Using a combination of spectrosocopic and microscopic methods, the structure and reactivity of metal modified electrodes are examined for a series of small molecule electroreduction reactions. In addition, the structure of polyoxometallate monolayers is studied. The results of this work help to develop an understanding of important fuel cell and energy storage technologies.