Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes

Detalhes bibliográficos
Autor(a) principal: Leones, Rita Daniela Barros
Data de Publicação: 2017
Outros Autores: Sabadini, R. C., Sentanin, F., Esperança, J. M. S. S., Pawlicka, Agnieszka, Silva, Maria Manuela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/49654
Resumo: Ionically conductive membranes of gelatin and d-PCL(530)/siloxane doped with cyano-based ionic liquids (ILs) were prepared through solvent casting and sol-gel methods, respectively. The membranes were characterized in terms of ionic conductivity, thermal behavior, morphology, and structure. All samples, except the d-PCL(530)/siloxane matrix, exhibited a predominantly amorphous morphology. The samples prepared through solvent casting and sol-gel displayed a minimum thermal stability of 170 and 230 ºC, respectively. The ionic conductivity varied accordingly with the type, quantity, and length of the alkyl chain of the cation of the ILs. The sample with the highest ionic conductivity was gelatin0.5[C2mim][N(CN)2] with 2.40 x 10-3 S. cm-1 at 25 ºC and 1.68 x 10-2 S. cm-1 at 95 ºC. The good results of ionic conductivity encouraged the assembly and characterization of prototypes of electrochromic devices (ECDs). The best results were obtained with glass/ITO/WO3/gelatin1[C2mim][SCN]/CeO2-TiO2/ITO/glass configuration that showed a fast color switching time (~ 15 s) and a good open circuit memory (~ 4 hours). The ECD changed its color from pale blue to transparent, and its charge density decreased from -17.53 to - 2.71 mC. cm-2 during 640 color/bleaching cycles.
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spelling Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routesSol-gelSolvent castingCyano-based ionic liquidsSolid polymer electrolyteElectrochromic deviceCiências Naturais::Ciências QuímicasScience & TechnologyIonically conductive membranes of gelatin and d-PCL(530)/siloxane doped with cyano-based ionic liquids (ILs) were prepared through solvent casting and sol-gel methods, respectively. The membranes were characterized in terms of ionic conductivity, thermal behavior, morphology, and structure. All samples, except the d-PCL(530)/siloxane matrix, exhibited a predominantly amorphous morphology. The samples prepared through solvent casting and sol-gel displayed a minimum thermal stability of 170 and 230 ºC, respectively. The ionic conductivity varied accordingly with the type, quantity, and length of the alkyl chain of the cation of the ILs. The sample with the highest ionic conductivity was gelatin0.5[C2mim][N(CN)2] with 2.40 x 10-3 S. cm-1 at 25 ºC and 1.68 x 10-2 S. cm-1 at 95 ºC. The good results of ionic conductivity encouraged the assembly and characterization of prototypes of electrochromic devices (ECDs). The best results were obtained with glass/ITO/WO3/gelatin1[C2mim][SCN]/CeO2-TiO2/ITO/glass configuration that showed a fast color switching time (~ 15 s) and a good open circuit memory (~ 4 hours). The ECD changed its color from pale blue to transparent, and its charge density decreased from -17.53 to - 2.71 mC. cm-2 during 640 color/bleaching cycles.This work was supported by Fundação para a Ciência e a Tecnologia (FCT) in the framework of the Research unit GREEN-it "Bioresources for Sustainability" (UID/Multi/04551/2013), Laboratório Associado para a Química Verde – Tecnologias e Processos Limpos-LAQV (UID/QUI/50006/2013), grant SRFH/BD/90366/2012 (R.L.) and a contract under Investigador FCT 2012 program (J.M.S.S.E.). It was also co-financed by FEDER through the COMPETE Program and PT2020 Partnership Agreement (POCI-01-0145-FEDER – 007265). M.M. Silva acknowledges CNPq (PVE grant 406617/2013-9) for the mobility grant provided by this institution. A. Pawlicka and R.C. Sabadini acknowledge CNPq (grant 305029/2013-4 and 152252/2016-9), and F.C. Sentanin acknowledges CAPES (grant PNPD20131739- 33002045017P6).info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoLeones, Rita Daniela BarrosSabadini, R. C.Sentanin, F.Esperança, J. M. S. S.Pawlicka, AgnieszkaSilva, Maria Manuela20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/49654eng0927-02481879-339810.1016/j.solmat.2017.04.047info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:12:24Zoai:repositorium.sdum.uminho.pt:1822/49654Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:04:18.859309Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
title Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
spellingShingle Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
Leones, Rita Daniela Barros
Sol-gel
Solvent casting
Cyano-based ionic liquids
Solid polymer electrolyte
Electrochromic device
Ciências Naturais::Ciências Químicas
Science & Technology
title_short Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
title_full Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
title_fullStr Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
title_full_unstemmed Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
title_sort Polymer electrolytes for electrochromic devices through solvent casting and sol-gel routes
author Leones, Rita Daniela Barros
author_facet Leones, Rita Daniela Barros
Sabadini, R. C.
Sentanin, F.
Esperança, J. M. S. S.
Pawlicka, Agnieszka
Silva, Maria Manuela
author_role author
author2 Sabadini, R. C.
Sentanin, F.
Esperança, J. M. S. S.
Pawlicka, Agnieszka
Silva, Maria Manuela
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Leones, Rita Daniela Barros
Sabadini, R. C.
Sentanin, F.
Esperança, J. M. S. S.
Pawlicka, Agnieszka
Silva, Maria Manuela
dc.subject.por.fl_str_mv Sol-gel
Solvent casting
Cyano-based ionic liquids
Solid polymer electrolyte
Electrochromic device
Ciências Naturais::Ciências Químicas
Science & Technology
topic Sol-gel
Solvent casting
Cyano-based ionic liquids
Solid polymer electrolyte
Electrochromic device
Ciências Naturais::Ciências Químicas
Science & Technology
description Ionically conductive membranes of gelatin and d-PCL(530)/siloxane doped with cyano-based ionic liquids (ILs) were prepared through solvent casting and sol-gel methods, respectively. The membranes were characterized in terms of ionic conductivity, thermal behavior, morphology, and structure. All samples, except the d-PCL(530)/siloxane matrix, exhibited a predominantly amorphous morphology. The samples prepared through solvent casting and sol-gel displayed a minimum thermal stability of 170 and 230 ºC, respectively. The ionic conductivity varied accordingly with the type, quantity, and length of the alkyl chain of the cation of the ILs. The sample with the highest ionic conductivity was gelatin0.5[C2mim][N(CN)2] with 2.40 x 10-3 S. cm-1 at 25 ºC and 1.68 x 10-2 S. cm-1 at 95 ºC. The good results of ionic conductivity encouraged the assembly and characterization of prototypes of electrochromic devices (ECDs). The best results were obtained with glass/ITO/WO3/gelatin1[C2mim][SCN]/CeO2-TiO2/ITO/glass configuration that showed a fast color switching time (~ 15 s) and a good open circuit memory (~ 4 hours). The ECD changed its color from pale blue to transparent, and its charge density decreased from -17.53 to - 2.71 mC. cm-2 during 640 color/bleaching cycles.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
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://hdl.handle.net/1822/49654
url http://hdl.handle.net/1822/49654
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0927-0248
1879-3398
10.1016/j.solmat.2017.04.047
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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