Temperature dependence of the electrical conductivity of imidazolium ionic liquids

J. Leys; M. Wubbenhorst; C.P. Menon; R. Rajesh; J. Thoen; C. Glorieux; Peter Nockemann; B. Thijs; K. Binnemans; S. Longuemart

doi:10.1063/1.2827462

Temperature dependence of the electrical conductivity of imidazolium ionic liquids

J. Leys, M. Wubbenhorst, C.P. Menon, R. Rajesh, J. Thoen, C. Glorieux, Peter Nockemann, B. Thijs, K. Binnemans, S. Longuemart

School of Chemistry and Chemical Engineering

Research output: Contribution to journal › Article › peer-review

176 Citations (Scopus)

Abstract

The electrical conductivities of 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids and of 1-hexyl-3-methylimidazolium ionic liquids with different anions were determined in the temperature range between 123 and 393 K on the basis of dielectric measurements in the frequency range from 1 to 10(7) Hz. Most of the ionic liquids form a glass and the conductivity values obey the Vogel-Fulcher-Tammann equation. The glass transition temperatures are increasing with increasing length of the alkyl chain. The fragility is weakly dependent on the alkyl chain length but is highly sensitive to the structure of the anion. (c) 2008 American Institute of Physics.

Original language	English
Article number	064509
Pages (from-to)	1-7
Number of pages	7
Journal	Journal of Chemical Physics
Volume	128
Issue number	6
DOIs	https://doi.org/10.1063/1.2827462
Publication status	Published - 2008

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "The electrical conductivities of 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids and of 1-hexyl-3-methylimidazolium ionic liquids with different anions were determined in the temperature range between 123 and 393 K on the basis of dielectric measurements in the frequency range from 1 to 10(7) Hz. Most of the ionic liquids form a glass and the conductivity values obey the Vogel-Fulcher-Tammann equation. The glass transition temperatures are increasing with increasing length of the alkyl chain. The fragility is weakly dependent on the alkyl chain length but is highly sensitive to the structure of the anion. (c) 2008 American Institute of Physics.",

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T1 - Temperature dependence of the electrical conductivity of imidazolium ionic liquids

AU - Leys, J.

AU - Wubbenhorst, M.

AU - Menon, C.P.

AU - Rajesh, R.

AU - Thoen, J.

AU - Glorieux, C.

AU - Nockemann, Peter

AU - Thijs, B.

AU - Binnemans, K.

AU - Longuemart, S.

PY - 2008

Y1 - 2008

N2 - The electrical conductivities of 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids and of 1-hexyl-3-methylimidazolium ionic liquids with different anions were determined in the temperature range between 123 and 393 K on the basis of dielectric measurements in the frequency range from 1 to 10(7) Hz. Most of the ionic liquids form a glass and the conductivity values obey the Vogel-Fulcher-Tammann equation. The glass transition temperatures are increasing with increasing length of the alkyl chain. The fragility is weakly dependent on the alkyl chain length but is highly sensitive to the structure of the anion. (c) 2008 American Institute of Physics.

AB - The electrical conductivities of 1-alkyl-3-methylimidazolium tetrafluoroborate ionic liquids and of 1-hexyl-3-methylimidazolium ionic liquids with different anions were determined in the temperature range between 123 and 393 K on the basis of dielectric measurements in the frequency range from 1 to 10(7) Hz. Most of the ionic liquids form a glass and the conductivity values obey the Vogel-Fulcher-Tammann equation. The glass transition temperatures are increasing with increasing length of the alkyl chain. The fragility is weakly dependent on the alkyl chain length but is highly sensitive to the structure of the anion. (c) 2008 American Institute of Physics.

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JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

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Temperature dependence of the electrical conductivity of imidazolium ionic liquids

Abstract

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