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

这项研究是由分析和表面化学计划支持的，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。这项研究由犹他州立大学化学与生物化学系的Greg M. Swain教授和他的团队进行，也将扩大导电金刚石膜电极材料的潜在应用。以前，导电金刚石薄膜已经被证明可以满足在恶劣的服务环境中用作传感器的电极材料所需的几种要求。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认识。大部分的努力将集中在薄膜导电金刚石电极的合成和结构表征上。这将有可能显著改善分析物的电化学检测，如金属离子、肼衍生物、烷醇胺和有机硫化合物。这项研究将有助于更好地理解金刚石电极。使用这些电极在恶劣（如高腐蚀性）服务环境中检测金属和有机物质的能力将得到改善。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.