Applicability of a fluorous solvent 1,1,1,2,3,4,4,5,5,5-decafluoropentane for the non-aqueous medium in liquid-liquid electrochemistry

We present the availability of a fluorous solvent, 1,1,1,2,3,4,4,5,5,5-decafluoropentane (C5F10), for the non-aqueous medium in liquid-liquid electrochemistry. The solvent is immiscible, and forms stable interface with water (W). The solvent dissolved a high concentration of a hydrophobic electrolyt...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2017-03, Vol.788, p.232-234
Main Authors: Katano, Hajime, Kuroda, Yasuhiro, Uematsu, Kohei
Format: Article
Language:English
Subjects:
1,1,1,2,3,4,4,5,5,5-Decafluoropentane
Analytical chemistry
Conductivity
Electrochemistry
Electrolytes
Fluorous solvent
Ion-transfer voltammetry
Liquid-liquid interface
Lithium chloride
Solvents
Voltammetry
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Summary:We present the availability of a fluorous solvent, 1,1,1,2,3,4,4,5,5,5-decafluoropentane (C5F10), for the non-aqueous medium in liquid-liquid electrochemistry. The solvent is immiscible, and forms stable interface with water (W). The solvent dissolved a high concentration of a hydrophobic electrolyte, tetrabutylammonium bis(nona fluorobutanesulfonyl)imide (TBABNSI), and the TBABNSI (C5F10) solution gave a high conductivity. The TBABNSI (C5F10)| LiCl (W) interface gave a polarizable potential window. Within the potential window, tetramethylammonium ion gave a reversible voltammetric wave due to its transfer across the C5F10|W interface. The potential window became wider by replacement of the supporting electrolytes in C5F10- and W-phases. The results indicate that various ion-transfer reactions at the C5F10|W interface can be studied voltammetrically. [Display omitted]
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2017.01.060