期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 226, 期 -, 页码 85-89出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2016.08.020
关键词
Ionic liquids; Ities; Gibbs energy of transfer; Diffusion coefficient; Electrochemistry
资金
- German Federal Ministry of Education and Research (BMBF-Bundesministerium fur Bildung and Forschung) [031A123]
A fundamental electrochemical study of several highly diluted ionic liquids (ILs) at the interface between two immiscible electrolyte solutions (ITIES) is reported to evaluate the electrochemical and the solvation properties of [BMIM]CI, [BMIM]BF4, [BMINI]OTf, [EMIM]Br and [AMIM]CL The interface is formed between a hydrophilic electrolyte dissolved in water and a hydrophobic electrolyte dissolved in an organic solvent, here 1,2-dichloroethane (DCE). The transfer of the highly diluted ionic species from the water phase into the organic phase occurs when an electrical potential difference is applied across the interface. Standard Gibbs energy of transfer, the relative hydrophilicity/hydrophobicity and transfer coefficients across the interface of the selected ILs are determined by cyclic voltammetry at large ITIES. (C) 2016 Elsevier B.V. All rights reserved.
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