• English
  • Deutsch
  • Log In
    Password Login
    or
  • Research Outputs
  • Projects
  • Researchers
  • Institutes
  • Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Artikel
  4. A lipophilic ionic liquid based on formamidinium cations and TFSI: The electric response and the effect of CO2 on the conductivity mechanism
 
  • Details
  • Full
Options
2017
Journal Article
Titel

A lipophilic ionic liquid based on formamidinium cations and TFSI: The electric response and the effect of CO2 on the conductivity mechanism

Abstract
This work describes the preparation of the new lipophilic ionic liquid tetraoctyl-formamidinium bis(trifluoromethanesulfonyl) imide (TOFATFSI), which is miscible with lower alkanes. In particular, this work focuses on the electric behaviour of TOFATFSI in the particularly challenging highly apolar environment of supercritical CO2. The conductivity and relaxation phenomena are revealed through the analysis of the broadband electric spectra with a particular emphasis on the effect of temperature and CO2 uptake on the IL conductivity. It is found that temperature boosts the conductivity via an increase in the charge carrier mobility. Also, CO2 absorption affects both the conductivity and the permittivity of the material due to the presence of CO2-IL interactions that modulate the nanostructure and the size of the TOFATFSI aggregates, which increases both the mobility and the density of the charge carriers.
Author(s)
Bertasi, Federico
Giffin, Guinevere A.
Fraunhofer-Institut für Silicatforschung ISC
Vezzu, Keti
Pace, Giuseppe
Abu-Lebdeh, Yaser
Armand, M.
Noto, Vito di
Zeitschrift
Physical chemistry, chemical physics : PCCP
Thumbnail Image
DOI
10.1039/C7CP02304A
Externer Link
Externer Link
Language
English
google-scholar
Fraunhofer-Institut für Silicatforschung ISC
Tags
  • lipophile

  • Leitfähigkeit

  • Kohlendioxid

  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Send Feedback
© 2022