不同离子液体中三氯化铁的电化学行为  

Electrochemical behavior of FeCl_3 in some ionic liquids

作　　者：刘秀辉[1] 张凯[1] 董存武[1] 何月华[1] 丁珍[1] 卢小泉[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃兰州730030

出　　处：《化学研究与应用》2009年第1期51-55,共5页Chemical Research and Application

基　　金：国家自然科学基金(20775060;20875077);甘肃省自然科学基金(0701RJZA109;0803RJZA105)

摘　　要：本文采用循环伏安法研究了FeCl3在五种不同的离子液体(包括疏水性和亲水性的离子液体)中的电化学行为,计算了不同离子液体中FeCl3的扩散系数。实验结果表明:Fe3+在离子液体中的氧化还原过程是一个具有较高可逆性的扩散控制过程。离子液体的阴、阳离子的结构及大小对Fe3+的电化学响应有影响,且离子液体的阴离子的影响较阳离子更大一些。The electrochemical behaviors of FeCl3 in the five ionic liquids （including hydrophilic and hydrophobic ionic liquid）were studied using cyclic voltammetry measurement. This paper also discussed the effect of the cation and the anion of ionic liquid on the electrochemical behavior of FeCl3. At the same time, the diffusion coefficients of FeCl3 in ionic liquids were estimated. The results indicate that the reduction of Fe^3＋ was a reversible process and was controlled by diffusion of FeCl3 in ionic liquids. The stroeture of the cation and the anion of ionic liquid have affect the electrochemical behavior of Fe^3＋,and the effect of the anion of ionic liquid is much more larger than the cation.

关 键 词：离子液体 循环伏安法 扩散系数 三氯化铁 

分 类 号：O646.1[理学—物理化学]