Electrochemical applications of electrolytes based on ionic liquids

M. J. Neto, R. Leones, F. Sentanin, J. M. S. S. Esperança, M. J. Medeiros, A. Pawlicka, M. M. Silva

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)


The potential utility of room temperature ionic liquids as electrolytes in current electrochemical applications has been explored. Hence, the electrochemical behavior of [Ni(tmc)]Br2 complex at a glassy carbon electrode in the absence or in the presence of unsaturated halides in the ionic liquids, 1-ethyl-3- methylimidazolium ethylsulfate, [C2mim][C 2SO4] and N,N,Ntrimethyl- N-(2-hydroxyethyl) ammonium bis(trifluoromethylsulfonyl)imide, [N1 1 1 2(OH)][NTf2], has been examined by cyclic voltammetry. It was observed that [Ni(tmc)] 2+ complex is reduced in a reversible one-electron step and the electrogenerated [Ni(tmc)]+ complex catalytically reduces the carbon-halogen bond of unsaturated halides. The potencial use of natural ionic conducting polymer matrixes was also investigated. Samples of natural macromolecules-based electrolytes with the ionic liquid 1-ethyl- 3-methylimidazolium ethylsulfate, [C2mim][C2SO 4], were prepared and characterized. The preliminary studies carried out with electrochromic devices (ECDs) incorporating optimized compositions have confirmed that these materials may perform as satisfactory multifunctional component layers in the field of ECD-based devices.

Original languageEnglish
Title of host publicationBatteries and Energy Technology (General) - 221st ECS Meeting
PublisherElectrochemical Society Inc
Number of pages10
ISBN (Print)9781623320522
Publication statusPublished - 1 Jan 2013
EventSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting - Seattle, WA, United States
Duration: 6 May 201210 May 2012


ConferenceSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting
CountryUnited States
CitySeattle, WA


  • Electrochromic devices
  • Ionic conductivity
  • Polymer electrolytes

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