Dicationic Ionic Liquids based on Bis(4-oligoethyleneoxyphenyl) Viologen Bistriflimide Salts Exhibiting High Ionic Conductivities

Pradip K. Bhowmik, Si L. Chen, Haesook Han, Khairul A. Ishak, Thamil Selvi Velayutham, Umama Bendaoud, Alfonso Martinez-Felipe

Research output: Contribution to journalArticlepeer-review

Abstract

We report colossal conductivities, σdc ∼ 10-1.5·S cm-1, of new dicationic ionic liquids, close to the range of benchmark materials/electrolytes applied in fuel cells and batteries. The new ionic liquids consist of extended viologen bistriflimides containing oligoethyleneoxy groups, were prepared via Zinke reaction under mild conditions, and are excellent candidates as components in devices for energy conversion and storage applications.
Original languageEnglish
Article number120126
JournalJournal of molecular liquids
Volume365
Early online date19 Aug 2022
DOIs
Publication statusPublished - 1 Nov 2022

Keywords

  • Extended viologen salts
  • Ionic liquids
  • Zincke reaction, Differential scanning calorimetry
  • Ionic conductivity, Dielectric impedance spectroscopy

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