Oscillations and Dynamic Instabilities in Chemical Systems

化学系统中的振荡和动态不稳定性

• 批准号: 8717791
• 负责人: Richard Noyes
• 金额: $ 16.84万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-04-01 至 1992-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8717791&HistoricalAwards=false
• 关键词: Oscillations; Dynamic; Instabilities; Chemical; Systems

Chemical reactions in closed system consume initial reactants monotonically to produce products. If fresh reagents are constantly flowed into a stirred reactor, very complicated regular or even oscillatory patterns of product formation may be observed. This research will continue the study of such systems, which can be considered models of complex chemical systems far away from equilibrium. Theoretical models will also be developed to explain the observed phenomena. Simple systems involving halate ions with organic species such as malonic acid, reactions of silver ions and halide ions to form insoluble precipitates, reactions of bromate ions with HS ions, catalyzed autoxidations, and thresholds for nucleation of gas bubbles are among the systems to be studied. This is part of experimental physical chemistry/chemical kinetics program.

封闭体系中的化学反应消耗初始反应物 单调地生产产品。 如果新鲜试剂 不断流入搅拌的反应器，非常复杂 产品形成的规则或甚至振荡图案可 被观察。 这项研究将继续研究这种 系统，可以被认为是复杂的化学模型， 远离平衡的系统。 理论模型将 也可以用来解释观察到的现象。 简单 涉及卤酸盐离子与有机物质的系统， 丙二酸，银离子和卤离子反应形成 不溶性沉淀，溴酸根离子与HS离子的反应， 催化自氧化和气体成核阈值 气泡是待研究的系统之一。 这是实验物理化学/化学的一部分 动力学程序