The study of application of nonlinear dynamics on green chemistry

该计划将研究几种有机试剂的氧化动力学和机理，这些试剂可用于(1)还原染料，(2)形成新型光化学振荡器，(3)制备修饰电极。将研究照明和非照明系统，以设计一种绿色工艺，在该工艺中，可以通过光还原重新生成还原剂。将从以下三个方面进行研究：(1)均相体系中的反应动力学和反应机理；(2)反应扩散介质中的图案形成；(3)修饰电极的构建。对于动力学测量，反应之后将用铂或离子选择电极，再加上参比电极。还将使用光谱分析方法来跟踪和分析反应。将使用最先进的仪器，如核磁共振、高效液相色谱和质谱仪来确定和量化反应产物，这将反过来为我们的建模提供指导。新型光控化学振荡器的问世，除了对染料工业和化学分析绿色新技术的发展产生长远影响外，还将极大地促进微扰非线性时空动力学的研究，这一学科因其在催化、生物、信息处理等领域的潜在应用而受到越来越多的关注。

This program will investigate the kinetics and mechanism of the oxidation of several organic reagents which can be employed to (1) reduce dyestuffs, (2) form novel photochemical oscillators, and (3) prepare modified electrodes. Both illuminated and non-illuminated systems will be studied in order to devise a green process in which the reducing agent can be re-generated through photoreduction. Research will be pursued from the following three directions: (1) Reaction dynamics and mechanism in homogeneous systems, (2) pattern formation in reaction-diffusion media, and (3) the construction of modified electrodes. For kinetic measurements, reactions will be followed by a Pt or an ion selective electrode, coupled with a reference electrode. Spectroscopic method will also be employed to follow and analyze the reaction. State-of-the-art instruments such as NMR, HPLC, and mass spectrometry will be employed to determine and quantify the reaction products, which will in turn provide guidance to our modeling. In addition to the long term impacts on the development of new green technology for dyeing industry and chemical analysis, the achievement of a new class of photo-controlled chemical oscillators will also greatly facilitate studies of perturbed nonlinear spatiotemporal dynamics, a subject which has recently attracted increasing attention due to its potential applications in catalysis, biology, information processing, etc.