Global Perturbation Theory Applied to Nonlinear Behavior in the Electrochemical Oxidation of Alcohols: Theory and Experiment

全局微扰理论应用于醇电化学氧化非线性行为：理论与实验

• 批准号: 9731060
• 负责人: Mark Schell
• 金额: $ 17万
• 依托单位: Southern Methodist University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-15 至 2002-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9731060&HistoricalAwards=false
• 关键词: Global; Perturbation; Theory; Applied; Nonlinear

Mark Schell is supported by a grant from the Theoretical and Computational Chemistry Program to study the theoretical and experimental nonlinear behavior in electrochemical oxidation of alcohols. The nonlinear kinetic processes to be studied are the electrochemical oxidations of alcohols in acid solution under the condition of constant current. Two fundamental problems will be addressed: 1) the investigation of the fundamental chemical steps underlying temporal instabilities during the elcetro-oxidation of methanol at a Pt electrode; and 2) the development of new techniques for describing nonlinear kinetic problems that are global in parameter space and phase space. Much of the proposed experimental work will center on the instabilities in the electro-oxidation of methanol. Preliminary experimental work has shown this system to be tristable. The PI will attempt to model this behavior by theoretically deriving the potential vs. current curves and oscillatory nonlinear behavior. The proposed work has practical implications with regard to the commercial feasibility of an ambient-temperature, methanol-air, fuel cell

马克·谢尔得到了理论和 计算化学课程的理论和实验研究 醇类电化学氧化的非线性行为。 的 要研究的非线性动力学过程是电化学 酸性溶液中醇类的氧化反应 电流 将解决两个基本问题：1） 研究了时间的基本化学步骤， 甲醇在Pt电极上电氧化过程中的不稳定性; 2）描述非线性动力学的新技术的发展 这些问题在参数空间和相空间中是全局的。 大部分 拟议的实验工作将集中在不稳定性， 甲醇的电氧化 初步实验表明， 这个系统是三稳态的。 PI将尝试模拟这种行为 通过从理论上推导电势与电流的曲线， 振荡非线性行为 拟议的工作对以下方面具有实际影响： 常温甲醇-空气燃料电池的商业可行性