1. Department
of Materials Science and Engineering, University of Ioannina, Ioannina 45110, Greece
2. School
of Materials, The University of Manchester, Manchester M13 9PL, U.K.
3. Separation
Technology Group, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Den Dolech 2, Eindhoven 5600 MB, The Netherlands
4. Solid
State Physics Department, Faculty of Physics, University of Athens, Panepistimioupoli, Athens 157 84, Greece
5. IOLITEC, Ionic Liquids
Technologies GmbH, Salzstraße
184, Heilbronn D-74076, Germany