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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/40452
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dc.contributor.authorMaciel, Jose Maria-
dc.contributor.authorVera Villamil Jaimes, Ruth Flavia-
dc.contributor.authorCorio, Paola-
dc.contributor.authorRubim, Joel Camargo-
dc.contributor.authorVolpe, Pedro Luis-
dc.contributor.authorAgostinho Neto, Augusto-
dc.contributor.authorLeite Agostinho, Silvia Maria-
dc.date.accessioned2014-05-20T15:31:16Z-
dc.date.accessioned2016-10-25T18:07:02Z-
dc.date.available2014-05-20T15:31:16Z-
dc.date.available2016-10-25T18:07:02Z-
dc.date.issued2008-03-01-
dc.identifierhttp://dx.doi.org/10.1016/j.corsci.2007.10.011-
dc.identifier.citationCorrosion Science. Oxford: Pergamon-Elsevier B.V. Ltd, v. 50, n. 3, p. 879-886, 2008.-
dc.identifier.issn0010-938X-
dc.identifier.urihttp://hdl.handle.net/11449/40452-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/40452-
dc.description.abstractThe nature of the protective film formed by benzotriazole (BTAH) on the surface of the 90/10 CuNi alloy in deaerated 0.5 mol L-1 H2SO4 solution containing Fe(III) ions as oxidant was investigated by weight-loss, calorimetric measurements, and by surface-enhanced Raman spectroscopy (SERS). The SERS measurements show that the protective film is composed by the [Cu(I)BTA](n), polymeric complex and that the BTAH molecules are also adsorbed on the electrode surface. A modification of the BET isotherm for adsorption of gases ill solids is proposed to describe the experimental results obtained from weight-loss experiments that suggest an adsorption in multilayers. Electrochemical studies of copper and nickel in 0.5 mol L-1 H2SO4 in presence and absence of BTAH have also been made as an aid to interpret the results. The calculated adsorption free energy of the cuprous benzotriazolate on the surface of the alloy is in accordance with the value for pure copper. (C) 2007 Elsevier Ltd. All rights reserved.en
dc.format.extent879-886-
dc.language.isoeng-
dc.publisherPergamon-Elsevier B.V. Ltd-
dc.sourceWeb of Science-
dc.subjectbenzotriazoleen
dc.subjectcopper-nickel alloysen
dc.subjectcorrosion inhibitorsen
dc.subjectRaman spectroscopyen
dc.subjectadsorption isothermsen
dc.titleThe characterisation of the protective film formed by benzotriazole on the 90/10 copper-nickel alloy surface in H2SO4 mediaen
dc.typeoutro-
dc.contributor.institutionUniversidade de São Paulo (USP)-
dc.contributor.institutionUniversidade Estadual de Ponta Grossa (UEPG)-
dc.contributor.institutionUniversidade de Brasília (UnB)-
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv São Paulo, Inst Quim, BR-05508990 São Paulo, Brazil-
dc.description.affiliationUniversidade Estadual de Ponta Grossa (UEPG), Dept Quim, BR-84030900 Ponta Grossa, PR, Brazil-
dc.description.affiliationUniversidade de Brasilia (UnB), Inst Quim, BR-07091997 Brasilia, DF, Brazil-
dc.description.affiliationUniv Estadual Campinas, Inst Quim, BR-05509900 Campinas, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias, BR-15054000 Sao Jose do Rio Preto, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias, BR-15054000 Sao Jose do Rio Preto, SP, Brazil-
dc.identifier.doi10.1016/j.corsci.2007.10.011-
dc.identifier.wosWOS:000254665500029-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofCorrosion Science-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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