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Ion transfer voltammetry at the interface of water and low dielectric constant organic solutions
Electrochimica Acta ( IF 6.6 ) Pub Date : 2020-03-14 , DOI: 10.1016/j.electacta.2020.136069
Megumi Kasuno , Kaede Wakabayashi , Yuki Matsuyama , Ryota Yamamura

Ion transfer reaction at the water (W)|low dielectric constant organic solution (O) interface was investigated using cyclic voltammetry with a micro-interface electrolytic cell. Organic solvents used in this work were benzene, anisole and chloroform, in addition to the previously reported toluene. The transfer reactions of quaternary ammonium ions and anions across the W|low dielectric constant O interface were found to be reversible. Formal potentials for ion transfer from W to benzene, anisole, chloroform and toluene, ΔbenzeneWϕ0', ΔanisoleWϕ0', ΔchloroformWϕ0' and ΔtolueneWϕ0' were evaluated, and linear correlations were observed between these formal potentials and the standard potential reported at the W|1,2-dichloroethane interface, ΔDCEWϕ0. While plots for cations and anions fall on different straight lines between ΔbenzeneWϕ0' and ΔDCEWϕ0, ΔanisoleWϕ0' and ΔDCEWϕ0, or ΔtolueneWϕ0' and ΔDCEWϕ0, ΔchloroformWϕ0' for cations and anions and ΔDCEWϕ0 appeared on the same straight line.



中文翻译:

水和低介电常数有机溶液界面的离子迁移伏安法

使用具有微界面电解池的循环伏安法研究了水(W)介电常数低的有机溶液(O)界面的离子转移反应。除先前报道的甲苯外,用于这项工作的有机溶剂是苯,苯甲醚和氯仿。发现季铵离子和阴离子在低介电常数O界面上的转移反应是可逆的。离子从W转移到苯,茴香醚,氯仿和甲苯的形式势,Δw ^ϕ0'Δ苯甲醚w ^ϕ0'Δ氯仿w ^ϕ0'Δ甲苯w ^ϕ0' 进行了评估,并观察到这些形式势与在W | 1,2-二氯乙烷界面处报告的标准势之间存在线性关系, ΔDCEw ^ϕ0。阳离子和阴离子的图线位于Δw ^ϕ0'ΔDCEw ^ϕ0Δ苯甲醚w ^ϕ0'ΔDCEw ^ϕ0, 要么 Δ甲苯w ^ϕ0'ΔDCEw ^ϕ0Δ氯仿w ^ϕ0' 用于阳离子和阴离子 ΔDCEw ^ϕ0 出现在同一条直线上。

更新日期:2020-03-16
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