Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels

The electrical and electrochemical properties of two ionogel materials based on the poly(N-isopropylacrylamide) gel with 1-ethyl-3-methylimidazolium ethyl sulfate and trihexyltetradecyl-phosphonium dicyanamide ionic liquids are investigated. The current-voltage curves show a current rectification fo...

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Autores: Gil González, Nerea, Benito López, Fernando, Castaño, Enrique, Morant Miñana, María Carmen
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/42938
Acceso en línea:http://hdl.handle.net/10810/42938
Access Level:acceso abierto
Palabra clave:ionogel (IO)
ionic liquid (IL)
current rectification electrochemical window (ECW)
interdigitated electrodes (IDEs)
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spelling Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogelsGil González, NereaBenito López, FernandoCastaño, EnriqueMorant Miñana, María Carmenionogel (IO)ionic liquid (IL)current rectification electrochemical window (ECW)interdigitated electrodes (IDEs)The electrical and electrochemical properties of two ionogel materials based on the poly(N-isopropylacrylamide) gel with 1-ethyl-3-methylimidazolium ethyl sulfate and trihexyltetradecyl-phosphonium dicyanamide ionic liquids are investigated. The current-voltage curves show a current rectification for both ionogels and ionic liquids after inducing ion adsorption on gold electrode surface. The polymer matrix of the ionogels mitigates ion adsorption, resulting in lower rectification ratios when comparing with the corresponding ionic liquids. The stability and the electrochemical window (ECW) of the ionogels are calculated from cyclic voltammograms and compared with the ones obtained for the ionic liquids, achieving the widest electrochemical window the phosphonium based ionic liquid and its ionogel. Finally, the effect of the absorbed atmospheric water and the coefficient diffusion of the redox active species inside the IO is calculated. This work widens the knowledge of the behavior of ionogel materials characterized on gold electrode interfaces.This work was supported by the Basque Government under the Elkartek Program (MICRO4FAB, Grant No. KK-2016/00030). N.G.-G. was supported by a PhD fellowship from the University of Navarra. F.B.-L. acknowledges funding support from Gobierno de España, Ministerio de Economia y Competitividad, with Grant No. BIO2016-80417-P and Gobierno Vasco Dpto. Educación for the consolidation of research groups (IT1271-19).Elsevier202020202020info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/42938reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO/BIO2016-80417-P/https://www.sciencedirect.com/science/article/pii/S0013468620305594?via%3Dihubinfo:eu-repo/semantics/openAccess© 2020 Elsevier Ltd. All rights reserved.oai:addi.ehu.eus:10810/429382026-06-18T09:23:17Z
dc.title.none.fl_str_mv Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
title Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
spellingShingle Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
Gil González, Nerea
ionogel (IO)
ionic liquid (IL)
current rectification electrochemical window (ECW)
interdigitated electrodes (IDEs)
title_short Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
title_full Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
title_fullStr Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
title_full_unstemmed Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
title_sort Electrical and electrochemical properties of imidazolium and phosphonium-based pNIPAAM ionogels
dc.creator.none.fl_str_mv Gil González, Nerea
Benito López, Fernando
Castaño, Enrique
Morant Miñana, María Carmen
author Gil González, Nerea
author_facet Gil González, Nerea
Benito López, Fernando
Castaño, Enrique
Morant Miñana, María Carmen
author_role author
author2 Benito López, Fernando
Castaño, Enrique
Morant Miñana, María Carmen
author2_role author
author
author
dc.subject.none.fl_str_mv ionogel (IO)
ionic liquid (IL)
current rectification electrochemical window (ECW)
interdigitated electrodes (IDEs)
topic ionogel (IO)
ionic liquid (IL)
current rectification electrochemical window (ECW)
interdigitated electrodes (IDEs)
description The electrical and electrochemical properties of two ionogel materials based on the poly(N-isopropylacrylamide) gel with 1-ethyl-3-methylimidazolium ethyl sulfate and trihexyltetradecyl-phosphonium dicyanamide ionic liquids are investigated. The current-voltage curves show a current rectification for both ionogels and ionic liquids after inducing ion adsorption on gold electrode surface. The polymer matrix of the ionogels mitigates ion adsorption, resulting in lower rectification ratios when comparing with the corresponding ionic liquids. The stability and the electrochemical window (ECW) of the ionogels are calculated from cyclic voltammograms and compared with the ones obtained for the ionic liquids, achieving the widest electrochemical window the phosphonium based ionic liquid and its ionogel. Finally, the effect of the absorbed atmospheric water and the coefficient diffusion of the redox active species inside the IO is calculated. This work widens the knowledge of the behavior of ionogel materials characterized on gold electrode interfaces.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/42938
url http://hdl.handle.net/10810/42938
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/BIO2016-80417-P/
https://www.sciencedirect.com/science/article/pii/S0013468620305594?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
© 2020 Elsevier Ltd. All rights reserved.
eu_rights_str_mv openAccess
rights_invalid_str_mv © 2020 Elsevier Ltd. All rights reserved.
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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