Issue 3, 2006
From the journal:

Green Chemistry

Decomposition of ionic liquids in electrochemical processing†

Maaike C. Kroon,ab   Wim Buijs,c   Cor J. Petersa  and  Geert-Jan Witkamp*b  

* Corresponding authors

a Physical Chemistry and Molecular Thermodynamics, Department of Chemical Technology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands

b Laboratory for Process Equipment, Department of Process & Energy, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Leeghwaterstraat 44, 2628 CA Delft, The Netherlands
E-mail: G.J.Witkamp@3me.tudelft.nl
Fax: +31-15-2786975
Tel: +31-15-2783602

c Biocatalysis and Organic Chemistry, Department of Chemical Technology, Faculty of Applied Sciences, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands

Abstract

The stability of ionic liquids with respect to high voltage differences is important for their use in electrochemical applications. Ionic liquids decompose when voltage differences larger than their electrochemical window (4–6 V) are applied. However, little is known about the decomposition mechanism and products. In this work the electrochemical breakdown of the ionic liquids 1,1-butylmethylpyrrolidinium bis(trifluoromethylsulfonyl)imide and 1-butyl-3-methylimidazolium tetrafluoroborate on the cathode is predicted using quantum chemical calculations and validated by experiments. The quantum chemical calculations showed to be an excellent method to predict the electrochemical decomposition reactions and products.

Graphical abstract: Decomposition of ionic liquids in electrochemical processing

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Article information

DOI
https://doi.org/10.1039/B512724F
Article type
Paper
Submitted
09 Sep 2005
Accepted
31 Oct 2005
First published
17 Nov 2005

Green Chem., 2006,8, 241-245

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Decomposition of ionic liquids in electrochemical processing

M. C. Kroon, W. Buijs, C. J. Peters and G. Witkamp, Green Chem., 2006, 8, 241 DOI: 10.1039/B512724F

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