Fe^(3+)在室温离子液体BPBF_4中迁移性质研究  

Study on Transportation Property of Fe^(3+) in Ionic Liquid BPBF_4

作　　者：张子富[1] 金一[1] 李吉广[1] 王斌[1] 李景斌[1] 

机构地区：[1]辽宁大学化学系,辽宁沈阳110036

出　　处：《辽宁大学学报（自然科学版）》2006年第3期197-201,共5页Journal of Liaoning University：Natural Sciences Edition

摘　　要：以室温离子液体——四氟硼酸正丁基吡啶(BPBF4)为溶剂,在293.15K^343.15K温度范围内,测定了浓度为0.07170mol/kg的FeCl3的伏安曲线,确定了Fe3+的还原是扩散控制的单电子转移可逆过程,用计时电流法估算了在不同浓度和不同温度下Fe3+的扩散系数D,进而求得了它在不同浓度下的扩散活化能.The chronoampermetry for various molality 0.07170 mol/ kg of FeC13 in the ionic liquid, BPBF4, GC working electrode referred to Al/Al^3＋ by different scan rates were measured over temperature range of 293.15 at 343.15 K. Since the Fe^3＋ reduction reaction is a reversible process with one transfer electron, according to Cottrell＇ s equation, values of diffusion coefficient of Fe^3 ＋ at different temperatures were estimated. And in term of Arrenius＇ equation, values of its diffusion activation energy perature increases, values of the diffusion coefficient also for various concentrations of Fe^3＋ were obtained. As ternincrease owing to the diminution of the BPBF4 viscosity.

关 键 词：室温离子液体 计时电流法 扩散系数 扩散活化能 四氟硼酸正丁基吡啶 

分 类 号：O642[理学—物理化学]