乳液引发的电化学振荡  

Electrochemical Oscillations Induced by Emulsion

作　　者：贺占博[1] 翟俊红[1] 张凤才[1] 

机构地区：[1]天津大学理学院化学系,天津300072

出　　处：《应用化学》2003年第11期1057-1061,共5页Chinese Journal of Applied Chemistry

基　　金：天津市自然科学基金资助的项目

摘　　要：将大量乳液加入丹尼尔电池中 ,形成电解质乳状液 ,由此产生了明显的电化学振荡 ,包括电池电动势振荡和电极反应的振荡。电导率的测定和显微镜下的乳液观察表明 ,此类化学振荡与乳液结构变化密切相关 ;用相关分析的方法考察了系列不同乳液和不同丹尼尔电池下的同类振荡反应 ;当振荡结束后 ,再通以一定频率的低压 ( 2V)交流电 ,停电后 ,振荡现象仍可以重新产生 ,形成可逆型化学振荡器。对研究远离平衡态的复杂动力学现象 ,对开发新型胶体交流蓄电池均有极其重要的意义。Obvious electrochemical oscillations in Daniell cell, including electromotive force oscillation and its electrode reaction oscillation, were found as adding emulsion to form electrolytic emulsion. The conductivity and microscope results on the emulsion show that there is a close relationship between the electrochemical oscillations and the change of emulsion construction. A series of oscillating reactions were discussed in terms of correlation analysis for different emulsions and different cells. When the oscillation finished, an alternating electric current in 2 V with certain frequency was given on the system for 4 h, the oscillation was found to be regenerated. Thus a reversible chemical oscillator was formed. This is very important for complexity kinetics study and producing colloid secondary battery.

关 键 词：乳液 丹尼尔电池 振荡 可逆 蓄电池 

分 类 号：O643.1[理学—物理化学] O646[理学—化学]