Catalysis, Adsorption and Charge Transfer Kinetics in Reactions at Electrodes

这个项目是在分析和表面化学的一般领域和在电化学的子领域。它包含五个特定的研究重点：(1)在定义良好的Langmuir-Blodgett取向分子膜上的电子转移动力学研究；(2)利用胶体粘土负载的电子转移介质进行电催化；(3)电催化还原双氧的机理研究；(4)多金属氧盐作为电催化试剂的研究；(5)利用硝基化合物进行氧化电催化。这些研究解决了跨膜类分子结构的非均相电子转移动力学的基本问题，以及对高效燃料电池技术至关重要的二氧电化学的基础研究，开发和评价新的催化系统，使所需材料的电化学生产能够有选择地进行，并具有成本效益。本项目目标的实现有望增强我们对膜-溶液界面电子转移过程基本原理的理解，这对生物传感器的发展至关重要。并定义新的电催化系统，以促进经济的电合成和有效的电能和化学能的相互转换。

This project is in the general area of analytical and surface chemistry and in the subfield of electrochemistry. It contains five specific research thrusts: (1) Studies of electron transfer kinetics across well-defined Langmuir-Blodgett oriented molecular films; (2) Electrocatalysis using colloidal clay-supported electron transfer mediators; (3) Mechanistic studies of the electrocatalytic reduction of dioxygen; (4) Studies of polyoxymetallates as electrocatalytic reagents; and (5) Oxidative electrocatalysis using nitroxyl compounds. These studies address fundamental issues in heterogeneous electron transfer kinetics across membrane-like molecular structures, basic studies in the electrochemistry of dioxygen that are of prime importance to efficient fuel cell technology, and the development and evaluation of new catalytic systems with which the electrochemical production of desired materials can be made to proceed selectively and cost effectively. Realization of the goals of this project can be expected to enhance our understanding of the fundamentals of electron transfer processes at membrane-solution interfaces, which is essential to the development of biosensors, and to define new electrocatalytic systems with which economical electrosyntheses and the efficient interconversion of electrical energy and chemical energy can be facilitated.