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dc.contributor.authorBueno, P. R.
dc.contributor.authorFaria, R. C.
dc.contributor.authorBulhoes, LOS
dc.date.accessioned2014-05-20T15:30:11Z
dc.date.available2014-05-20T15:30:11Z
dc.date.issued2005-03-31
dc.identifierhttp://dx.doi.org/10.1016/j.ssi.2005.02.007
dc.identifier.citationSolid State Ionics. Amsterdam: Elsevier B.V., v. 176, n. 11-12, p. 1175-1180, 2005.
dc.identifier.issn0167-2738
dc.identifier.urihttp://hdl.handle.net/11449/39626
dc.description.abstractThe electrochemical quartz crystal microbalance (EQCM) technique was used to study two chemically distinct Nb2O5 electrochromic thin films (one pure and the other lithium-doped) during the lithium electroinsertion reaction. In the initial cycles, the electrode showed an irreversible mass variation greater than expected for Li+ insertion/deinsertion processes, which was attributed to the wettability effect (allied to the porous morphology) that emerged as the dominant process in apparent electrode mass changes. As the cycles progressed, the mass variation stabilized and the changes in apparent mass became reversible, showing a good correlation with the charge variations.The results generally indicated that the Li+ insertion/deinsertion process occurred more easily in the Nb2O5-doped film, which also displayed a greater capacity for Li+ insertion. However, a total mass/charge balance analysis revealed that the stoichiometry of the Li+ solid state insertion/deinsertion reaction was similar in the two electrodes under study. © 2005 Elsevier B.V. All rights reserved.en
dc.format.extent1175-1180
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofSolid State Ionics
dc.sourceWeb of Science
dc.subjectEQCMpt
dc.subjectNb2O5pt
dc.subjectinsertionpt
dc.subjectlithiumpt
dc.titleEQCM study during lithium insertion/deinsertion processes in Nb2O5 films prepared by polymeric precursor methoden
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.description.affiliationSão Paulo State Univ, BR-14801907 Araraquara, SP, Brazil
dc.description.affiliationUniv Fed Sao Carlos, Dept Chem, BR-13565905 Sao Carlos, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, BR-14801907 Araraquara, SP, Brazil
dc.identifier.doi10.1016/j.ssi.2005.02.007
dc.identifier.wosWOS:000228981600023
dc.rights.accessRightsAcesso restrito
unesp.author.orcid0000-0003-2827-0208[1]
dc.relation.ispartofjcr2.751
dc.relation.ispartofsjr0,856
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