电极过程动力学(陈胜利)1.ppt

化学学院物理化学专业研究生课程 “电极过程动力学” 授课教材 查全性等著： 《电极过程动力学导论》 （第三版，科学出版社，2002年） 推荐参考书 Written by Allen J. Bard and Larry F. Faulkner, 《Electrochemical Methods: Fundamentals and Applications》 （Second Edition, Wiley, 2001） Chapter 1 INTRODUTION AND OVERVIEW OF ELECTRODE PROCESSES Electrochemistry ? The laws (principles) and the technologies concerning the conversion between chemical energy and electrical energy Interrelation between chemical phenomena (chemical reactions, chemical changes, etc.) and electric phenomena (charge, current, potential, electric field, etc.) With a history of more than two centuries, electrochemistry has been a typical example of a truly interdisciplinary (各学科间的)area of science and technology. Its roots have been in chemistry, physics, materials and biological science and its applications spreading from electrochemical analysis and synthesis to environmental protection and energy conversion and storage. Everyday life items such as batteries, the glucose （葡萄糖）sensor and domestic or medical gas sensors are now a commodity, while the prospect of mass production of green electric vehicles(Electric vehicles) is no more a challenge but a viable option. On an industrial scale, apart from the now mature chlor-alkali and metal finishing and extraction industries, there is significant activity in the areas of energy conversion and storage by means of fuel cells and solar cells as well as in the use of electrochemical methods for effluent treatment. “Electrochemistry provides many opportunities for sustainable development.” Electrochemical Cells and Reactions The features of electrochemical reactions The overall redox reaction is made up of two half-reactions taking place independently at two locations where electronic conductors(Electrodes) and ionic conductors(electrolytes) are made in contact; Charge (electron or ions) transfer between the electrodes and che