Oscillations and Dynamic Instabilities in Chemical Systems

封闭体系中的化学反应单调地消耗初始反应物来产生产物。如果新鲜试剂不断地流入搅拌反应器，可能会观察到非常复杂的规则甚至振荡的产物形成模式。这项研究将继续对这类系统的研究，这可以被认为是远离平衡的复杂化学系统的模型。还将开发理论模型来解释观察到的现象。涉及卤酸盐离子与有机物种(如丙二酸)的简单体系、银离子和卤离子反应形成不溶性沉淀物、溴酸盐离子与HS离子的反应、催化自氧化以及气泡成核的阈值等都是要研究的体系。这是实验物理化学/化学动力学课程的一部分。

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.