Selective Ion Separation Based on the Interaction between Ion and Electron Transfer Reactions at Liquid/Liquid or Liquid/Membrane Interface.

基于液/液或液/膜界面上离子和电子转移反应之间相互作用的选择性离子分离。

• 批准号: 01470035
• 负责人: KIHARA Sorin
• 金额: $ 4.03万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01470035/
• 关键词: Liquid; Liquid or Liquid; Membrane Interface; Ion Transfer; Electron Transfer; Selective Ion Separation; Theory and Experiment; Oscillation of Interfacial Potential; Process of Oscillation; Voltammetry for Ion or Electron Transfer at Liquid; Liq

The ion transfer at an interface of aqueous (W) /Organic (Org) solution or W/Membrane (M) is controlled by the Galvani potential difference (DELTApsi) between the two phases. The objective of the present work was to develop a methodology for the highly sensitive ion separation utilizing the interface of which DELTA psi is controlled critically by the redox (electron transfer) reaction. The results are summarized in the following.The electron transfer reactions at the interface between W containing ferricyanide, ferrocyanide, hydroxide ions or hydroquinone, etc. and Org containing ferrocene, tetrathiafulvalene, tetracyanoquinodimethane, etc. were investigated by the Voltammetry for the Charge Transfer at the Liquid/Liquid Interface (VCTLLI), and theoretical equations for the electron transfer were derived. The electron transfer is determined by the standard redox potential, concentration, diffusion coefficient, and activity of the redox species in both the phases. Combining the equation … More s for the electron transfer and those for the ion transfer, a theory for the interaction between ion and electron transfer reactions was proposed, and the theory was confirmed experimentally.The effect of temperature on the ion transfer is mainly ascribable to the change in properties of solvents with the temperature, and that of coexisting salts is explained from both variations of water activity and the ion-pair formation in W with the salt concentrations. These effects are expected to be very effective to realize a highly selective separation of ions controlled by the electron transfer.The oscillation of DELATpsi accompanied with the ion transfer not only influences the separation of ions but also relates profoundly to the excitation of living organisms. The first quantitative explanation on the process of the oscillation was proposed based on the investigation on the ion transfer and adsorption of ion-pair at the interface by VCTLLI and the consideration of the ionic equilibrium in both the phases. Less

水(W)/有机(Org)溶液或W/膜(M)界面上的离子迁移受两相之间的电流电位差(DELTApsi)控制。本工作的目的是开发一种用于高灵敏离子分离的方法，该方法利用界面上的Delta psi受到氧化还原(电子转移)反应的关键控制。用液/液界面电荷转移伏安法(VCTLLI)研究了含W的铁氰化物、亚铁氰化物、氢氧离子或对苯二酚等与含二茂铁、四硫富瓦烯、四氰基喹甲烷等有机化合物之间的界面电子转移反应，推导了电子转移的理论方程。电子转移由标准氧化还原电势、浓度、扩散系数和氧化还原物种在两相中的活性决定。组合方程…在S关于电子转移和离子转移的基础上，提出了离子和电子转移反应的相互作用理论，并从实验上证实了该理论.温度对离子转移的影响主要归因于溶剂性质随温度的变化，共存盐的影响可从水的活度和W中离子对的形成随盐浓度的变化来解释.这些效应有望非常有效地实现由电子转移控制的高选择性离子分离。伴随着离子转移的DELATPSI振荡不仅影响离子的分离，而且与生物体的激发有着深刻的关系。基于VCTLLI对离子对在界面上的迁移和吸附的研究，以及对两相离子平衡的考虑，首次对振荡过程进行了定量解释。较少

项目成果

K.Maeda: "Voltammetric study on the oscillation of the potential difference at a liquid/liquid or liquid/membrane interface accompanied by ion transfer" J.Electroanal.Chem.295. 183-201 (1990)

K.Maeda：“伴随离子转移的液/液或液/膜界面电位差振荡的伏安研究”J.Electroanal.Chem.295。

S. Umetani: "Adduct formation properties of mono- and bidentate phosphine oxide compounds in the liquid-liquid extraction of some divalent metals with 1-phemyl-3-methyl-4-benzoyl-5-pyrazolone." Anal. Chim. Acta. 232. 293-299 (1990)

S. Umetani：“用 1-苯甲酰基-3-甲基-4-苯甲酰基-5-吡唑啉酮液-液萃取一些二价金属时单齿和双齿氧化膦化合物的加合物形成特性。”

S.Kihara: "The electron transfer at a liquid/liquid interface studied by currentーscan polarography at the electrolyte dropping electrode." J.Electroanal.Chem.271. 107-125 (1989)

S.Kihara：“通过电解质滴电极处的电流扫描极谱研究液/液界面的电子转移。”J.Electroanal.Chem.271 (1989)。

M. Suzuki: "Effect of temperature on ion transfer at the aqueous/organic solution interface studied by current-scan polarography with the electrolyte solution dropping electrode." J. Electroanal. Chem.292. 231-244 (1990)

M. Suzuki：“通过电流扫描极谱法和电解质溶液滴电极研究温度对水/有机溶液界面离子转移的影响。”

Kohji Maeda,et al.: "Voltammetric study on the oscillation of potential difference at a liquid/liquid interface accompanied with ion transfer." J.Electroanal.Chem.

Kohji Maeda 等人：“伴随离子转移的液/液界面电位差振荡的伏安研究。”