Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas

Detalhes bibliográficos
Autor(a) principal: Avellaneda,C. O.
Data de Publicação: 1998
Outros Autores: Aegerter,M. A., Pawlicka,A.
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000300023
Resumo: The sols for thin electrochromic coatings of Nb2O5 were obtained by synthesis of the niobium butoxide from BuONa and NbCl5. The ~300nm thick films were deposited by dip-coating technique from the alkoxide solution and calcined at 560ºC in O2 atmosphere during 3 hours. The particles size of niobium oxide (V) powder (~20mm) was obtained from x-ray diffraction using the Scherrer equation. The coatings were characterized by cyclic voltammetry and cronoamperommetry techniques. The spectral variation of the optical transmittance were determined in situ as a function of the cyclical potencial and memory effect. The insertion process of lithium is reversible and change the film color from transparent (T=80%) to dark blue (T=20%).
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spelling Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicassol-gelNb2O5 filmselectrochromic propertiesThe sols for thin electrochromic coatings of Nb2O5 were obtained by synthesis of the niobium butoxide from BuONa and NbCl5. The ~300nm thick films were deposited by dip-coating technique from the alkoxide solution and calcined at 560ºC in O2 atmosphere during 3 hours. The particles size of niobium oxide (V) powder (~20mm) was obtained from x-ray diffraction using the Scherrer equation. The coatings were characterized by cyclic voltammetry and cronoamperommetry techniques. The spectral variation of the optical transmittance were determined in situ as a function of the cyclical potencial and memory effect. The insertion process of lithium is reversible and change the film color from transparent (T=80%) to dark blue (T=20%).Sociedade Brasileira de Química1998-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000300023Química Nova v.21 n.3 1998reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40421998000300023info:eu-repo/semantics/openAccessAvellaneda,C. O.Aegerter,M. A.Pawlicka,A.por2003-12-04T00:00:00Zoai:scielo:S0100-40421998000300023Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2003-12-04T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
title Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
spellingShingle Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
Avellaneda,C. O.
sol-gel
Nb2O5 films
electrochromic properties
title_short Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
title_full Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
title_fullStr Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
title_full_unstemmed Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
title_sort Caracterização de filmes finos de Nb2O5 com propriedades eletrocrômicas
author Avellaneda,C. O.
author_facet Avellaneda,C. O.
Aegerter,M. A.
Pawlicka,A.
author_role author
author2 Aegerter,M. A.
Pawlicka,A.
author2_role author
author
dc.contributor.author.fl_str_mv Avellaneda,C. O.
Aegerter,M. A.
Pawlicka,A.
dc.subject.por.fl_str_mv sol-gel
Nb2O5 films
electrochromic properties
topic sol-gel
Nb2O5 films
electrochromic properties
description The sols for thin electrochromic coatings of Nb2O5 were obtained by synthesis of the niobium butoxide from BuONa and NbCl5. The ~300nm thick films were deposited by dip-coating technique from the alkoxide solution and calcined at 560ºC in O2 atmosphere during 3 hours. The particles size of niobium oxide (V) powder (~20mm) was obtained from x-ray diffraction using the Scherrer equation. The coatings were characterized by cyclic voltammetry and cronoamperommetry techniques. The spectral variation of the optical transmittance were determined in situ as a function of the cyclical potencial and memory effect. The insertion process of lithium is reversible and change the film color from transparent (T=80%) to dark blue (T=20%).
publishDate 1998
dc.date.none.fl_str_mv 1998-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000300023
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40421998000300023
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40421998000300023
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.21 n.3 1998
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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