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

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Conduction Through Viscoelastic Phase in a Redox-Active Ionic Liquid at Reduced Temperatures. / Thorsmolle, Verner K.; Topgaard, Daniel; Brauer, Jan C.; Zakeeruddin, Shaik M.; Lindman, Björn; Graetzel, Michael; Moser, Jacques-E.

In: Advanced Materials, Vol. 24, No. 6, 2012, p. 781.

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Thorsmolle, Verner K. ; Topgaard, Daniel ; Brauer, Jan C. ; Zakeeruddin, Shaik M. ; Lindman, Björn ; Graetzel, Michael ; Moser, Jacques-E. / Conduction Through Viscoelastic Phase in a Redox-Active Ionic Liquid at Reduced Temperatures. In: Advanced Materials. 2012 ; Vol. 24, No. 6. pp. 781.

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TY - JOUR

T1 - Conduction Through Viscoelastic Phase in a Redox-Active Ionic Liquid at Reduced Temperatures

AU - Thorsmolle, Verner K.

AU - Topgaard, Daniel

AU - Brauer, Jan C.

AU - Zakeeruddin, Shaik M.

AU - Lindman, Björn

AU - Graetzel, Michael

AU - Moser, Jacques-E.

PY - 2012

Y1 - 2012

N2 - The 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.

AB - The 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.

KW - ionic liquids

KW - liquid crystals

KW - conducting materials

KW - polyiodides

KW - mesophases

KW - viscoelastic phase

U2 - 10.1002/adma.201104230

DO - 10.1002/adma.201104230

M3 - Article

C2 - 22213095

VL - 24

SP - 781

JO - Advanced Materials

JF - Advanced Materials

SN - 1521-4095

IS - 6

ER -