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Pure Appl. Chem., 2009, Vol. 81, No. 8, pp. 1473-1488

Published online 2009-07-28

Charge-transfer processes at the interface between hydrophobic ionic liquid and water

Zdenĕk Samec1*, Jan Langmaier1 and Takashi Kakiuchi2

1 J. Heyrovský Institute of Physical Chemistry of ASCR, v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic
2 Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, 615-8510, Japan

Abstract: This article provides a brief review of theoretical and methodological concepts in the area of the charge-transfer processes at the interface between a hydrophobic ionic liquid (IL) and an electrolyte solution in water (W). Electrochemical methods of study of the W|IL interfaces are described, current experimental problems are indicated, and the most important experimental results are summarized. The relevance of electrochemistry at the W|IL interfaces to the extraction behavior of ILs is outlined.