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

氮氧化物和硫氧化物电化学的原位光谱研究

• 批准号: 0911621
• 负责人: Daniel Scherson
• 金额: $ 45万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0911621&HistoricalAwards=false
• 关键词: situ; Spectroscopic; Studies; Electrochemistry; Nitrogen

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.

Case Western Reserve University的Daniel A. Scherson教授得到了化学分析和表面化学计划的支持，以研究与氮和硫氧化物的减少和氧化有关的异质氧化还原反应的机制，以及在水溶液中的氧化以及它们在水性电解质中的氧气，以及其他与能量的氧化还原相关的物种，以及与Enteryancy of Elemplosesys和Electerys的其他相关物种。特殊的重点是这些反应的不可逆吸附电催化剂的原位静态和动态表征，以及所选裸露和原子修饰的单晶金属表面的微观形容的影响对吸附的中间体和其他界面特性的性质的影响。从微电极的耦合，电荷注射和一系列互补的基于显微镜的光谱技术，包括紫外线可见反射光谱，共振和表面增强的拉曼光谱和第二次谐波，将获得对这些问题的洞察力。这项工作的成功将为将原位光谱化学技术扩展到纳秒范围，从而可以研究与其他各种领域相关的电子传递事件的动态方面，包括电催化，异构催化，腐蚀，传感器，传感器和环境科学。参与这项研究的学生将接受广泛的基本和应用学科的培训，并将在印度中央电化学研究所的国际研究经验中接受。