Electrogenerated Chemiluminescence Imaging for Spatially- Resolved in-situ Surface Analysis

本本科院校研究（RUI）项目属于分析化学和表面化学的一般领域以及电化学的子领域。这项创新实验计划的目标是开发和实施一种技术，利用这种技术可以对电极反应进行空间映射，并更充分地了解这些过程的效率。Engstrom教授和他的本科生将使用显微镜收集由发光电极反应产生的图像，用位置敏感探测器检测该图像，并使用成像系统绘制电极表面的活动图。该技术将用于研究困扰电分析和电镀技术的微电极和大电极上的不均匀电流密度问题，对化学传感器发展至关重要的微电极阵列中的不均匀电流密度问题，电极表面的微非均匀性问题，以及导电聚合物薄膜中的缺陷问题。这个项目的结果将有助于电分析设备的优化和在微观水平上电极过程的基本知识。

This Research in Undergraduate Institutions (RUI) project is in the general area of analytical and surface chemistry and in the subfield of electrochemistry. The goal of this innovative experimental program is the development and implementation of a technique with which electrode reactions can be spatially mapped and the efficiency of these processes more fully understood. Professor Engstrom and his undergraduate research students will use a microscope to collect the image produced by a light- emitting electrode reaction, detect this image with a position- sensitive detector, and use an imaging system to map the activity of the electrode surface. This technique will be used to study problems of non-uniform current densities at both micro- and macroelectrodes that plague both electroanalysis and electroplating technologies, non-uniform current densities in microelectrode arrays that are important to the development of chemical sensors, microheterogeniety of electrode surfaces, and defects in conducting polymer films. The results of this project should contribute to the optimization of electroanalytical devices and to fundamental knowledge of electrode processes at the microscopic level.