Issue 18, 2004
From the journal:

Physical Chemistry Chemical Physics

Electrocapillarity at the nonpolarized interface between the aqueous solution and the room-temperature molten salt composed of 1-octyl-3-methylimidazolium bis(pentafluoroethylsulfonyl)imide

Takashi Kakiuchi,*a   Fumiko Shigematsu,a   Takuya Kasahara,a   Naoya Nishia  and  Masahiro Yamamotoa  

* Corresponding authors

a Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto, Japan
E-mail: kakiuchi@scl.kyoto-u.ac.jp
Fax: (81)-75-383-2490
Tel: (81)-75-383-2489

Abstract

The interfacial tension between the room-temperature molten salt (RTMS, also called ionic liquid) composed of 1-octyl-3-methylimidazolium bis(perfluoroethylsulfonyl)imide (C8mimC2C2N) and the aqueous solution containing 1-octyl-3-methylimidazolium chloride or lithium bis(perfluoroethylsulfonyl)imide has been measured as a function of the composition of the aqueous phase. The phase–boundary potential calculated for this non-polarized interface from the solution composition enables us to construct the corresponding electrocapillary curve, which shows a parabolic shape with respect to the variation of the phase–boundary potential over 300 mV. C8mim+ ions specifically adsorb at the interface. Switching of the potential-determining ion from C8mim+ to C2C2N− causes a jump of more than 160 mV in the potential at the outer Helmholtz plane on the aqueous side of the interface.

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/B408333B
Article type
Paper
Submitted
01 Jun 2004
Accepted
01 Jul 2004
First published
20 Jul 2004

Phys. Chem. Chem. Phys., 2004,6, 4445-4449

Permissions

Request permissions

Electrocapillarity at the nonpolarized interface between the aqueous solution and the room-temperature molten salt composed of 1-octyl-3-methylimidazolium bis(pentafluoroethylsulfonyl)imide

T. Kakiuchi, F. Shigematsu, T. Kasahara, N. Nishi and M. Yamamoto, Phys. Chem. Chem. Phys., 2004, 6, 4445 DOI: 10.1039/B408333B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements