Conduction Through Viscoelastic Phase in a Redox-Active Ionic Liquid at Reduced Temperatures

Thorsmolle, Verner K.Topgaard, DanielBrauer, Jan C.Zakeeruddin, Shaik M.Lindman, BjoernGraetzel, MichaelMoser, Jacques-E.2012-03-012012-03-012012-03-01201210.1002/adma.201104230https://infoscience.epfl.ch/handle/20.500.14299/78302WOS:000299693000013The phase diagram of the redox active ionic liquid 1-methyl-3-propylimidazolium iodide (PMII) is examined as a function of temperature and iodine concentration. Beyond a threshold concentration of 3.9 M, the formation of higher polyiodides gives rise to a viscoelastic phase upon cooling. Despite of the very high viscosity of such polyiodide-containing PMII melts a strikingly high conductivity is maintained through Grotthuss-type bond exchange and ionic conduction.ionic liquidsliquid crystalsconducting materialspolyiodidesmesophasesviscoelastic phaseSensitized Solar-CellsNuclear-Magnetic-ResonanceSolvent-Free ElectrolytesCharge-TransportMolten-SaltsDiffusionPerformanceCoupleIodideConduction Through Viscoelastic Phase in a Redox-Active Ionic Liquid at Reduced Temperaturestext::journal::journal article::research article