Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties

Detalhes bibliográficos
Autor(a) principal: Nunes, Sílvia
Data de Publicação: 2005
Outros Autores: Zea Bermudez, V. de, Silva, Maria Manuela, Barros, Sandra Cerqueira, Smith, Michael John, Morales, Enrique, Rocha, João, Carlos, Luís
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/5163
Resumo: Poly(oxyethylene)(POE/siloxane-based materials incorporating magnesium triflate were prepared by the sol-gel process. The host Class II hybrid matrix (di-ureasil) employed was composed of a siliceous framework to which short POE chains were covalently bonded through urea linkages. Ormolytes with salt composition ranging from 500 to 1 were characterised. The nanohybrid with n = 20, thermally stable up to 360ºC, exhibited the highest ionic conductivity. The electrochemical stability of this material was found to span -3 to +2 volts.
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spelling Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical propertiesDi-ureasilComplex impedanceCyclic voltammetrySol-gelMagnesium triflateScience & TechnologyPoly(oxyethylene)(POE/siloxane-based materials incorporating magnesium triflate were prepared by the sol-gel process. The host Class II hybrid matrix (di-ureasil) employed was composed of a siliceous framework to which short POE chains were covalently bonded through urea linkages. Ormolytes with salt composition ranging from 500 to 1 were characterised. The nanohybrid with n = 20, thermally stable up to 360ºC, exhibited the highest ionic conductivity. The electrochemical stability of this material was found to span -3 to +2 volts.Fundação para a Ciência e Tecnologia - POCTI/P/CTM/33653/00; SFRH/BD/13559/03; POCTI/P/CTM/46780/03.ElsevierUniversidade do MinhoNunes, SílviaZea Bermudez, V. deSilva, Maria ManuelaBarros, Sandra CerqueiraSmith, Michael JohnMorales, EnriqueRocha, JoãoCarlos, Luís20052005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/5163eng"Solid State Ionics". ISSN 0167-2738. 176:17-18 (2005) 1591-1599.0167-273810.1016/j.ssi.2005.04.013http://www.sciencedirect.com/science?_ob= ArticleURL&_udi=B6TY4-4G94HK1-1&_coverDate=05%2F31%2F2005&_alid=417564191&_rdoc=1&_fmt= &_orig=search&_qd=1&_cdi=5608&_sort=d&view= c&_acct=C000057396&_version=1&_urlVersion= 0&_userid=2459786&md5= e768ca269c1b3eff0d08a4d3b3d612a8info: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:RCAAP2023-07-21T12:14:57Zoai:repositorium.sdum.uminho.pt:1822/5163Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:07:19.527650Repositório 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 Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
title Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
spellingShingle Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
Nunes, Sílvia
Di-ureasil
Complex impedance
Cyclic voltammetry
Sol-gel
Magnesium triflate
Science & Technology
title_short Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
title_full Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
title_fullStr Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
title_full_unstemmed Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
title_sort Di-ureasil ormolytes doped with Mg2+ ions : part 1: morphological, thermal and electrochemical properties
author Nunes, Sílvia
author_facet Nunes, Sílvia
Zea Bermudez, V. de
Silva, Maria Manuela
Barros, Sandra Cerqueira
Smith, Michael John
Morales, Enrique
Rocha, João
Carlos, Luís
author_role author
author2 Zea Bermudez, V. de
Silva, Maria Manuela
Barros, Sandra Cerqueira
Smith, Michael John
Morales, Enrique
Rocha, João
Carlos, Luís
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Nunes, Sílvia
Zea Bermudez, V. de
Silva, Maria Manuela
Barros, Sandra Cerqueira
Smith, Michael John
Morales, Enrique
Rocha, João
Carlos, Luís
dc.subject.por.fl_str_mv Di-ureasil
Complex impedance
Cyclic voltammetry
Sol-gel
Magnesium triflate
Science & Technology
topic Di-ureasil
Complex impedance
Cyclic voltammetry
Sol-gel
Magnesium triflate
Science & Technology
description Poly(oxyethylene)(POE/siloxane-based materials incorporating magnesium triflate were prepared by the sol-gel process. The host Class II hybrid matrix (di-ureasil) employed was composed of a siliceous framework to which short POE chains were covalently bonded through urea linkages. Ormolytes with salt composition ranging from 500 to 1 were characterised. The nanohybrid with n = 20, thermally stable up to 360ºC, exhibited the highest ionic conductivity. The electrochemical stability of this material was found to span -3 to +2 volts.
publishDate 2005
dc.date.none.fl_str_mv 2005
2005-01-01T00:00:00Z
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/1822/5163
url http://hdl.handle.net/1822/5163
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Solid State Ionics". ISSN 0167-2738. 176:17-18 (2005) 1591-1599.
0167-2738
10.1016/j.ssi.2005.04.013
http://www.sciencedirect.com/science?_ob= ArticleURL&_udi=B6TY4-4G94HK1-1&_coverDate=05%2F31%2F2005&_alid=417564191&_rdoc=1&_fmt= &_orig=search&_qd=1&_cdi=5608&_sort=d&view= c&_acct=C000057396&_version=1&_urlVersion= 0&_userid=2459786&md5= e768ca269c1b3eff0d08a4d3b3d612a8
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
repository.mail.fl_str_mv
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