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

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Abstract

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.

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Nyckelord

Originalspråkengelska
Sidor (från-till)781
TidskriftAdvanced Materials
Volym24
Utgåva nummer6
StatusPublished - 2012
PublikationskategoriForskning
Peer review utfördJa