Ion transport with charge-protected and non-charge-protected cations in alcohol-based electrolytes using the compensated Arrhenius formalism. Part I: ionic conductivity and the static dielectric constant

The Journal of Physical Chemistry. B
Matt PetrowskyRoger Frech

Abstract

The temperature dependence of ionic conductivity and the static dielectric constant is examined for 0.30 m TbaTf- or LiTf-1-alcohol solutions. Above ambient temperature, the conductivity increases with temperature to a greater extent in electrolytes whose salt has a charge-protected cation. Below ambient temperature, the dielectric constant changes only slightly with temperature in electrolytes whose salt has a cation that is not charge-protected. The compensated Arrhenius formalism is used to describe the temperature-dependent conductivity in terms of the contributions from both the exponential prefactor σo and Boltzmann factor exp(-Ea/RT). This analysis explains why the conductivity decreases with increasing temperature above 65 °C for the LiTf-dodecanol electrolyte. At higher temperatures, the decrease in the exponential prefactor is greater than the increase in the Boltzmann factor.

References

Nov 17, 2006·The Journal of Physical Chemistry. B·Matt PetrowskySteven Greenbaum
Apr 3, 2009·The Journal of Physical Chemistry. B·Matt Petrowsky, Roger Frech
Nov 21, 2009·The Journal of Physical Chemistry. B·Matt Petrowsky, Roger Frech

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Citations

Dec 3, 2013·The Journal of Chemical Physics·Matt PetrowskyRoger Frech
Jul 31, 2012·The Journal of Physical Chemistry. B·Matt PetrowskyRoger Frech
Feb 19, 2013·The Journal of Physical Chemistry. B·Matt PetrowskyRoger Frech
Apr 20, 2013·The Journal of Physical Chemistry. B·Matt PetrowskyRoger Frech
Oct 16, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·F DuboisR Douali

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