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 contribution

5 Citations (Scopus)

Abstract

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
Pages235-244
Number of pages10
Volume45
Edition29
ISBN (Print)9781623320522
DOIs
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

Conference

ConferenceSymposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting
CountryUnited States
CitySeattle, WA
Period6/05/1210/05/12

Fingerprint

Ionic liquids
Electrochromic devices
Electrolytes
Glassy carbon
Conducting polymers
Polymer matrix
Macromolecules
Cyclic voltammetry
Electrodes
Carbon
Electrons
Chemical analysis
Temperature

Keywords

  • Electrochromic devices
  • Ionic conductivity
  • Polymer electrolytes

Cite this

Neto, M. J., Leones, R., Sentanin, F., Esperança, J. M. S. S., Medeiros, M. J., Pawlicka, A., & Silva, M. M. (2013). Electrochemical applications of electrolytes based on ionic liquids. In Batteries and Energy Technology (General) - 221st ECS Meeting (29 ed., Vol. 45, pp. 235-244). Electrochemical Society Inc. https://doi.org/10.1149/04529.0235ecst
Neto, M. J. ; Leones, R. ; Sentanin, F. ; Esperança, J. M. S. S. ; Medeiros, M. J. ; Pawlicka, A. ; Silva, M. M. / Electrochemical applications of electrolytes based on ionic liquids. Batteries and Energy Technology (General) - 221st ECS Meeting. Vol. 45 29. ed. Electrochemical Society Inc, 2013. pp. 235-244
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title = "Electrochemical applications of electrolytes based on ionic liquids",
abstract = "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.",
keywords = "Electrochromic devices, Ionic conductivity, Polymer electrolytes",
author = "Neto, {M. J.} and R. Leones and F. Sentanin and Esperan{\cc}a, {J. M. S. S.} and Medeiros, {M. J.} and A. Pawlicka and Silva, {M. M.}",
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Neto, MJ, Leones, R, Sentanin, F, Esperança, JMSS, Medeiros, MJ, Pawlicka, A & Silva, MM 2013, Electrochemical applications of electrolytes based on ionic liquids. in Batteries and Energy Technology (General) - 221st ECS Meeting. 29 edn, vol. 45, Electrochemical Society Inc, pp. 235-244, Symposium on Batteries and Energy Technology Joint General Session - 221st ECS Meeting, Seattle, WA, United States, 6/05/12. https://doi.org/10.1149/04529.0235ecst

Electrochemical applications of electrolytes based on ionic liquids. / Neto, M. J.; Leones, R.; Sentanin, F.; Esperança, J. M. S. S.; Medeiros, M. J.; Pawlicka, A.; Silva, M. M.

Batteries and Energy Technology (General) - 221st ECS Meeting. Vol. 45 29. ed. Electrochemical Society Inc, 2013. p. 235-244.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Electrochemical applications of electrolytes based on ionic liquids

AU - Neto, M. J.

AU - Leones, R.

AU - Sentanin, F.

AU - Esperança, J. M. S. S.

AU - Medeiros, M. J.

AU - Pawlicka, A.

AU - Silva, M. M.

N1 - The authors are pleased to acknowledge the financial support provided by the University of Minho and the Fundacao para a Ciencia e Tecnologia (contracts project no F-COMP-01-0124-FEDER-022716, ref FCT PEst-C/QUI/UI0686/2011, FEDERCOMPETE, FCT-Portugal, PTDC/CTM-NAN/121274/2010 and PEst- OE/EQB/LA0004/2011) for laboratory equipment and research staff. The authors are also indebted to CNPq, FAPESP and CAPES, for the financial support given to this research.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - 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.

AB - 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.

KW - Electrochromic devices

KW - Ionic conductivity

KW - Polymer electrolytes

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U2 - 10.1149/04529.0235ecst

DO - 10.1149/04529.0235ecst

M3 - Conference contribution

SN - 9781623320522

VL - 45

SP - 235

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BT - Batteries and Energy Technology (General) - 221st ECS Meeting

PB - Electrochemical Society Inc

ER -

Neto MJ, Leones R, Sentanin F, Esperança JMSS, Medeiros MJ, Pawlicka A et al. Electrochemical applications of electrolytes based on ionic liquids. In Batteries and Energy Technology (General) - 221st ECS Meeting. 29 ed. Vol. 45. Electrochemical Society Inc. 2013. p. 235-244 https://doi.org/10.1149/04529.0235ecst