SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.matchemphys.2019.121792 http://hdl.handle.net/11449/189334 |
Resumo: | Ionic liquids (ILs) 1-butyl-3-methylimidazolium hydrogensulfate (BMI.HSO4), 1-butylimidazole hydrogensulfate (BImH.HSO4) and 3-triethylammonium propane sulfonic hydrogensulfate (TEA-PS.HSO4) were encapsulated in UiO-66 (Zr-MOF) framework. These samples were incorporated into sulfonated poly (ether ether ketone) (SPEEK) polymer in different concentrations of IL. The influence of ionic liquid concentration encapsulated in Zr-MOF was evaluated through the morphology and thermal and chemical stability of the modified membranes. The incorporation of 7.5 wt% Zr-MOF in SPEEK produced membranes with high proton conductivity, making this the best mass ratio for the incorporation of the ionic liquids. Contact angle and swelling analysis indicate that the presence of these ionic liquids provides stability to the membrane, preventing it from absorbing high amounts of water. Mass ratios of 2.5 and 5.0 wt% of encapsulated ILs in Zr-MOF were also used. Proton conductivity results show that a higher concentration of ionic liquid generates agglomerates, limiting proton mobility in the membranes. Among the three ionic liquids tested, TEA-PS.HSO4 presents the best proton conductivity values, between 92 and 140 mS cm−1. These results indicate that the Zr-MOF/TEA-PS.HSO4 sample is a good candidate for use in proton exchange membrane for fuel cells. |
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SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquidIonic liquidMetal-organic frameworkSulfonated poly (ether ether ketone)Zr-MOF/Ionic liquid-loaded proton exchange membraneIonic liquids (ILs) 1-butyl-3-methylimidazolium hydrogensulfate (BMI.HSO4), 1-butylimidazole hydrogensulfate (BImH.HSO4) and 3-triethylammonium propane sulfonic hydrogensulfate (TEA-PS.HSO4) were encapsulated in UiO-66 (Zr-MOF) framework. These samples were incorporated into sulfonated poly (ether ether ketone) (SPEEK) polymer in different concentrations of IL. The influence of ionic liquid concentration encapsulated in Zr-MOF was evaluated through the morphology and thermal and chemical stability of the modified membranes. The incorporation of 7.5 wt% Zr-MOF in SPEEK produced membranes with high proton conductivity, making this the best mass ratio for the incorporation of the ionic liquids. Contact angle and swelling analysis indicate that the presence of these ionic liquids provides stability to the membrane, preventing it from absorbing high amounts of water. Mass ratios of 2.5 and 5.0 wt% of encapsulated ILs in Zr-MOF were also used. Proton conductivity results show that a higher concentration of ionic liquid generates agglomerates, limiting proton mobility in the membranes. Among the three ionic liquids tested, TEA-PS.HSO4 presents the best proton conductivity values, between 92 and 140 mS cm−1. These results indicate that the Zr-MOF/TEA-PS.HSO4 sample is a good candidate for use in proton exchange membrane for fuel cells.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Laboratório de Reatividade e Catálise - Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, P.O. Box 15003Chemistry Dept. Federal University of São Carlos, C.P. 676Instituto de Tecnología Química Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/nDepartment of Chemistry Universidade Estadual Paulista – Unesp, P.O. Box 473, BauruDepartment of Chemistry Universidade Estadual Paulista – Unesp, P.O. Box 473, BauruFAPESP: 2013/07296-2Laboratório de Reatividade e Catálise - Universidade Federal do Rio Grande do SulUniversidade Federal de São Carlos (UFSCar)Universitat Politècnica de València-Consejo Superior de Investigaciones CientíficasUniversidade Estadual Paulista (Unesp)da Trindade, Letícia G. [UNESP]Borba, Katiúscia M.N.Zanchet, LetíciaLima, Demétrius W.Trench, Aline B.Rey, FernandoDiaz, UrbanoLongo, ElsonBernardo-Gusmão, KatiaMartini, Emilse M.A.2019-10-06T16:37:23Z2019-10-06T16:37:23Z2019-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.matchemphys.2019.121792Materials Chemistry and Physics, v. 236.0254-0584http://hdl.handle.net/11449/18933410.1016/j.matchemphys.2019.1217922-s2.0-85068036246Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Chemistry and Physicsinfo:eu-repo/semantics/openAccess2024-04-29T18:16:46Zoai:repositorio.unesp.br:11449/189334Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:16:46Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
title |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
spellingShingle |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid da Trindade, Letícia G. [UNESP] Ionic liquid Metal-organic framework Sulfonated poly (ether ether ketone) Zr-MOF/Ionic liquid-loaded proton exchange membrane |
title_short |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
title_full |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
title_fullStr |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
title_full_unstemmed |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
title_sort |
SPEEK-based proton exchange membranes modified with MOF-encapsulated ionic liquid |
author |
da Trindade, Letícia G. [UNESP] |
author_facet |
da Trindade, Letícia G. [UNESP] Borba, Katiúscia M.N. Zanchet, Letícia Lima, Demétrius W. Trench, Aline B. Rey, Fernando Diaz, Urbano Longo, Elson Bernardo-Gusmão, Katia Martini, Emilse M.A. |
author_role |
author |
author2 |
Borba, Katiúscia M.N. Zanchet, Letícia Lima, Demétrius W. Trench, Aline B. Rey, Fernando Diaz, Urbano Longo, Elson Bernardo-Gusmão, Katia Martini, Emilse M.A. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Laboratório de Reatividade e Catálise - Universidade Federal do Rio Grande do Sul Universidade Federal de São Carlos (UFSCar) Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
da Trindade, Letícia G. [UNESP] Borba, Katiúscia M.N. Zanchet, Letícia Lima, Demétrius W. Trench, Aline B. Rey, Fernando Diaz, Urbano Longo, Elson Bernardo-Gusmão, Katia Martini, Emilse M.A. |
dc.subject.por.fl_str_mv |
Ionic liquid Metal-organic framework Sulfonated poly (ether ether ketone) Zr-MOF/Ionic liquid-loaded proton exchange membrane |
topic |
Ionic liquid Metal-organic framework Sulfonated poly (ether ether ketone) Zr-MOF/Ionic liquid-loaded proton exchange membrane |
description |
Ionic liquids (ILs) 1-butyl-3-methylimidazolium hydrogensulfate (BMI.HSO4), 1-butylimidazole hydrogensulfate (BImH.HSO4) and 3-triethylammonium propane sulfonic hydrogensulfate (TEA-PS.HSO4) were encapsulated in UiO-66 (Zr-MOF) framework. These samples were incorporated into sulfonated poly (ether ether ketone) (SPEEK) polymer in different concentrations of IL. The influence of ionic liquid concentration encapsulated in Zr-MOF was evaluated through the morphology and thermal and chemical stability of the modified membranes. The incorporation of 7.5 wt% Zr-MOF in SPEEK produced membranes with high proton conductivity, making this the best mass ratio for the incorporation of the ionic liquids. Contact angle and swelling analysis indicate that the presence of these ionic liquids provides stability to the membrane, preventing it from absorbing high amounts of water. Mass ratios of 2.5 and 5.0 wt% of encapsulated ILs in Zr-MOF were also used. Proton conductivity results show that a higher concentration of ionic liquid generates agglomerates, limiting proton mobility in the membranes. Among the three ionic liquids tested, TEA-PS.HSO4 presents the best proton conductivity values, between 92 and 140 mS cm−1. These results indicate that the Zr-MOF/TEA-PS.HSO4 sample is a good candidate for use in proton exchange membrane for fuel cells. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:37:23Z 2019-10-06T16:37:23Z 2019-10-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.matchemphys.2019.121792 Materials Chemistry and Physics, v. 236. 0254-0584 http://hdl.handle.net/11449/189334 10.1016/j.matchemphys.2019.121792 2-s2.0-85068036246 |
url |
http://dx.doi.org/10.1016/j.matchemphys.2019.121792 http://hdl.handle.net/11449/189334 |
identifier_str_mv |
Materials Chemistry and Physics, v. 236. 0254-0584 10.1016/j.matchemphys.2019.121792 2-s2.0-85068036246 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials Chemistry and Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1803649428583612416 |