电化学反应及其腐蚀

Electrochemical Reaction and its Corrosion

氧化―还原反应是普遍存在的一类重要的反应。冶金、锈蚀及许多化工生产都涉及到氧化―还原反应。氧化―还原反应的本质是电子得失或偏移,如何通过化学能转变为电能,使氧化―还原反应获得或失去电子等,是化学教学中的重点和难点。文章介绍了氧化―还原反应中电化学的概念和原电池的原理,利用电化学的知识来解释一些电化学腐蚀现象。

Oxidation-reduction reaction is an important universal reaction. The metallurgy and corrosion of the metal as well as lots of chemical production are related to oxidation-reduction reaction. The essence of oxidation-reduction reaction is electron gain, loss and transfer. How to turn chemistry power into electric power so as to make oxidation-reduction reaction gain and loss electron has been a difficult question for the students. The concept of electrochemistry and principles of primary element in oxidation-reduction reaction were discussed in this paper. And some of the most confusing natural phenomena were explained with the knowledge of chemistry electrochemical corrosion.