Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol

Detalhes bibliográficos
Autor(a) principal: Silva, Fernanda Trombetta da
Data de Publicação: 2015
Outros Autores: Lima, Demétrius William, Becker, Márcia Regina, Souza, Roberto Fernando de, Martini, Emilse Maria Agostini
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/142277
Resumo: The ionic conductivity values of the ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate (BMI.BF4) and ethylene glycol (EG) electrolytes in different concentrations and over a wide temperature range were determined. The results are discussed in terms of the interactions between the cations and anions of the ionic liquid and the organic solvent. The temperaturedependence of the ionic conductivity for BMI.BF4, as well as solutions containing BMI.BF4 and EG as electrolytes, in the temperature range of 248-358 K, obeys the Vogel-Tammann-Fulcher equation. The highest ionic conductivity was 42 mS cm-1 obtained with a solution of BMI.BF4 in EG at a molar fraction of 0.50 (358 K) due to the high ionic mobility. The critical micellar concentration (cmc) of 0.1 mol L-1 determined through the ionic conductivity indicates that BMI.BF4 behaves as a weak electrolyte above this value. The results obtained indicate that binary solutions based on BMI.BF4 and EG are appropriate for use in technological applications, such as capacitors.
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spelling Silva, Fernanda Trombetta daLima, Demétrius WilliamBecker, Márcia ReginaSouza, Roberto Fernando deMartini, Emilse Maria Agostini2016-06-04T02:09:22Z20150103-5053http://hdl.handle.net/10183/142277000987724The ionic conductivity values of the ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate (BMI.BF4) and ethylene glycol (EG) electrolytes in different concentrations and over a wide temperature range were determined. The results are discussed in terms of the interactions between the cations and anions of the ionic liquid and the organic solvent. The temperaturedependence of the ionic conductivity for BMI.BF4, as well as solutions containing BMI.BF4 and EG as electrolytes, in the temperature range of 248-358 K, obeys the Vogel-Tammann-Fulcher equation. The highest ionic conductivity was 42 mS cm-1 obtained with a solution of BMI.BF4 in EG at a molar fraction of 0.50 (358 K) due to the high ionic mobility. The critical micellar concentration (cmc) of 0.1 mol L-1 determined through the ionic conductivity indicates that BMI.BF4 behaves as a weak electrolyte above this value. The results obtained indicate that binary solutions based on BMI.BF4 and EG are appropriate for use in technological applications, such as capacitors.application/pdfengJournal of the Brazilian Chemical Society. São Paulo. Vol. 26, no. 10 (Oct. 2015), p. 2125-2129Líquidos iônicosEtilenoglicolCondutividade iônicaIonic liquidIonic conductivity1-butyl-3-methylimidazolium tetrafluoroborateEthylene glycolCritical micellar concentrationTransport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycolinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000987724.pdf000987724.pdfTexto completo (inglês)application/pdf555226http://www.lume.ufrgs.br/bitstream/10183/142277/1/000987724.pdfa2ccdf5f626ee8add6799a23bb58b2a6MD51TEXT000987724.pdf.txt000987724.pdf.txtExtracted Texttext/plain19880http://www.lume.ufrgs.br/bitstream/10183/142277/2/000987724.pdf.txt30bf1d05bf1c9094563f57bae5a88d62MD52THUMBNAIL000987724.pdf.jpg000987724.pdf.jpgGenerated Thumbnailimage/jpeg1862http://www.lume.ufrgs.br/bitstream/10183/142277/3/000987724.pdf.jpgcedf5657fe2966c764171cde7ed413a5MD5310183/1422772021-09-18 04:47:23.725987oai:www.lume.ufrgs.br:10183/142277Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-09-18T07:47:23Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
title Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
spellingShingle Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
Silva, Fernanda Trombetta da
Líquidos iônicos
Etilenoglicol
Condutividade iônica
Ionic liquid
Ionic conductivity
1-butyl-3-methylimidazolium tetrafluoroborate
Ethylene glycol
Critical micellar concentration
title_short Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
title_full Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
title_fullStr Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
title_full_unstemmed Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
title_sort Transport properties of binary solutions containing the ionic liquid BMI.BF4 and ethylene glycol
author Silva, Fernanda Trombetta da
author_facet Silva, Fernanda Trombetta da
Lima, Demétrius William
Becker, Márcia Regina
Souza, Roberto Fernando de
Martini, Emilse Maria Agostini
author_role author
author2 Lima, Demétrius William
Becker, Márcia Regina
Souza, Roberto Fernando de
Martini, Emilse Maria Agostini
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Silva, Fernanda Trombetta da
Lima, Demétrius William
Becker, Márcia Regina
Souza, Roberto Fernando de
Martini, Emilse Maria Agostini
dc.subject.por.fl_str_mv Líquidos iônicos
Etilenoglicol
Condutividade iônica
topic Líquidos iônicos
Etilenoglicol
Condutividade iônica
Ionic liquid
Ionic conductivity
1-butyl-3-methylimidazolium tetrafluoroborate
Ethylene glycol
Critical micellar concentration
dc.subject.eng.fl_str_mv Ionic liquid
Ionic conductivity
1-butyl-3-methylimidazolium tetrafluoroborate
Ethylene glycol
Critical micellar concentration
description The ionic conductivity values of the ionic liquid (IL) 1-butyl-3-methylimidazolium tetrafluoroborate (BMI.BF4) and ethylene glycol (EG) electrolytes in different concentrations and over a wide temperature range were determined. The results are discussed in terms of the interactions between the cations and anions of the ionic liquid and the organic solvent. The temperaturedependence of the ionic conductivity for BMI.BF4, as well as solutions containing BMI.BF4 and EG as electrolytes, in the temperature range of 248-358 K, obeys the Vogel-Tammann-Fulcher equation. The highest ionic conductivity was 42 mS cm-1 obtained with a solution of BMI.BF4 in EG at a molar fraction of 0.50 (358 K) due to the high ionic mobility. The critical micellar concentration (cmc) of 0.1 mol L-1 determined through the ionic conductivity indicates that BMI.BF4 behaves as a weak electrolyte above this value. The results obtained indicate that binary solutions based on BMI.BF4 and EG are appropriate for use in technological applications, such as capacitors.
publishDate 2015
dc.date.issued.fl_str_mv 2015
dc.date.accessioned.fl_str_mv 2016-06-04T02:09:22Z
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dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/142277
dc.identifier.issn.pt_BR.fl_str_mv 0103-5053
dc.identifier.nrb.pt_BR.fl_str_mv 000987724
identifier_str_mv 0103-5053
000987724
url http://hdl.handle.net/10183/142277
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Journal of the Brazilian Chemical Society. São Paulo. Vol. 26, no. 10 (Oct. 2015), p. 2125-2129
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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instname:Universidade Federal do Rio Grande do Sul (UFRGS)
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