Raman Spectroscopy and Electrochemical Reactivity of Carbon Surfaces

碳表面的拉曼光谱和电化学反应

• 批准号: 9819978
• 负责人: Richard McCreery
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-03-15 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9819978&HistoricalAwards=false
• 关键词: Raman; Spectroscopy; Electrochemical; Reactivity; Carbon

This research project supported by the Analytical and Surface Chemistry Program, focuses on the study of the fundamental of heterogeneous electron transfer reactions at carbon surfaces. Professor McCreery and his students at The Ohio State University will use carbon surfaces that have been highly characterized by surface spectroscopic methods, especially Raman spectroscopy, to prepare chemically modified surfaces with known structural properties. The aim is to then be able to control rates of electron transfer that occur at these surfaces to either enhance or suppress specific reactions. This work has relevance to a broad range of technologies including electrochemical energy conversion, electrosynthesis, and applications using surface-active carbon.Carbon electrodes are used in diverse processes including energy conversion in batteries and fuel cells, materials production, and corrosion. Despite the economic importance of carbon electrodes their electron transfer properties are not easily controlled. This is in part due to a lack of a molecular level understanding of the surface structure and chemistry of carbon. Dr. McCreery and his students at Ohio State University use carbon electrodes that have been extensively characterized for studies of electron transfer reactions. By changing the chemical nature of the surface of carbon, electron transfer reactions can be altered. This work aims to establish a fundamental understanding of the relationship between surface structure and electron transfer reactivity. These results will be useful in numerous energy conversion technologies, electrosynthesis, and applications using surface-active carbon.

该研究项目由分析和表面化学计划支持，重点研究碳表面非均相电子转移反应的基础。 McCreery教授和他的学生在俄亥俄州州立大学将使用碳表面，已高度表征的表面光谱方法，特别是拉曼光谱，以制备化学改性的表面与已知的结构特性。 其目的是能够控制在这些表面发生的电子转移速率，以增强或抑制特定的反应。 这项工作与广泛的技术相关，包括电化学能量转换、电合成和使用表面活性碳的应用。碳电极用于多种过程，包括电池和燃料电池中的能量转换、材料生产和腐蚀。 尽管碳电极在经济上很重要，但它们的电子转移性质不容易控制。 这部分是由于缺乏对碳的表面结构和化学性质的分子水平的理解。 McCreery博士和他在俄亥俄州州立大学的学生使用碳电极，这种电极已经被广泛地用于电子转移反应的研究。 通过改变碳表面的化学性质，可以改变电子转移反应。 这项工作旨在建立对表面结构和电子转移反应性之间关系的基本了解。 这些结果将在许多能量转换技术，电合成，和使用表面活性炭的应用中是有用的。