Structure-Reactivity Studies of Diamond Electrochemical Interfaces: New Applications in Electroanalysis

这项研究得到了分析和表面化学计划的支持，重点是发展对金刚石电极界面结构-反应性关系的更基本的理解。犹他州立大学化学和生物化学系的格雷格·M·斯温教授和他的团队正在进行这项研究，这项研究还将扩大导电金刚石膜电极材料的潜在应用。此前，导电金刚石薄膜已被证明满足在恶劣使用环境中用作传感器的电极材料所需的几项要求。这些要求包括化学惰性、耐腐蚀性、稳定性和反应性。目前的研究将增加对导电微晶、纳米晶和单晶金刚石结构反应性的理解。大部分工作将集中在薄膜导电金刚石电极的合成和结构表征上。这可能会显著改善对金属离子、肼类化合物、烷醇胺和有机硫化物等分析物的电化学检测。这项研究将有助于更好地理解金刚石电极。在恶劣(例如高度腐蚀性)的服务环境中使用这些电极检测金属和有机物种的能力将得到提高。这反过来又有可能减少环境污染。

This research, which is supported by the Analytical and Surface Chemistry Program, is focused on developing a more fundamental understanding of the structure-reactivity relationships at diamond electrode interfaces. The research, being conducted by Professor Greg M. Swain and his group in the Department of Chemistry and Biochemistry at Utah State University, will also result in extending the potential applications of conductive diamond film electrode materials. Previously, conductive diamond thin films have been shown to meet several requirements that are needed for electrode materials that are used as sensors in severe service environments. Such requirements include chemical inertness, corrosion resistance, stability and reactivity. The current research will increase the understanding of structure-reactivity of conductive microcrystalline, nanocrystalline, and single crystal diamond. Much of the effort will concentrate on synthesis and structural characterization of thin film conductive diamond electrodes. This will likely lead to significant improvement in the electrochemical detection of analytes such as metal ions, hydrazine derivatives, alkanolamine, and organic sulfur compounds. This research will lead to a better understanding of diamond electrodes. The capability to use these electrodes to detect metals and organic species in severe (e.g. highly corrosive) service environments will be improved. This in turn has the potential to reduce environmental pollution.