In situ Spectroscopic Studies of the Electrochemistry of Nitrogen and Sulfur Oxides

丹尼尔教授A.凯斯西储大学的Scherson得到化学系分析和表面化学项目的支持，研究与氮和硫氧化物及其含氧阴离子在水性电解质中的还原和氧化相关的非均相氧化还原反应的机制，以及与能量转换和电合成相关的其他氧化还原活性物质。特别关注的是在原位的静态和动态特性的不可逆吸附的电催化剂，这些反应，以及选定的裸露和原子改性的单晶金属表面上的吸附的中间体和其他界面性质的性质的微观形貌的影响。深入了解这些问题将获得耦合的微电极，电荷注入，和一系列的互补显微镜为基础的光谱技术，包括紫外可见反射光谱，共振和表面增强拉曼光谱和二次谐波产生。这项工作的成功将提供一种手段，用于扩展到纳秒范围内的原位光谱电化学技术，允许相关的各种其他领域，包括电催化，多相催化，腐蚀，传感器和环境科学的电子转移事件的动态方面的研究。参与这项研究的学生将接受广泛的基础和应用学科的培训，并将在印度中央电化学研究所获得国际研究经验。

Professor Daniel A. Scherson of Case Western Reserve University is supported by the Analytical and Surface Chemistry Program in the Division of Chemistry to investigate the mechanism of heterogeneous redox reactions associated with the reduction and oxidation of nitrogen and sulfur oxides and their oxyanions in aqueous electrolytes, as well as other redox active species of relevance to energy conversion and electrosynthesis. Special focus is on the in situ static and dynamic characterization of irreversibly adsorbed electrocatalysts for these reactions, as well as the effect of the microtopography of selected bare and atom-modified single crystal metal surfaces on the nature of adsorbed intermediates and other interfacial properties. Insight into these issues will be gained from coupling of microelectrodes, charge injection, and an array of complementary microscope-based spectroscopic techniques, including UV visible reflection spectroscopy, resonance and surface enhanced Raman spectroscopies and second harmonic generation. The success of this work would provide a means for extending in situ spectroelectrochemical techniques into the nanosecond range, allowing the study of the dynamic aspects of electron transfer events of relevance to a variety of other fields, including electrocatalysis, heterogeneous catalysis, corrosion, sensors, and environmental science. Students involved in this research will be trained in a broad range of fundamental and applied disciplines, and will be exposed to an international research experience at the Central Electrochemical Research Institute in India.