Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | https://doi.org/10.1016/j.jmrt.2020.06.011 http://hdl.handle.net/1843/57235 https://orcid.org/0000-0001-5980-0078 https://orcid.org/0000-0002-8203-2625 |
Resumo: | This work evaluated a corrosion inhibitor that consists of a mixture of a long chain silanol and cerium(III) salt, to protect carbon steel in 0.1mol L–1 NaCl solution. The inhibitor solution was obtained after hydrolysis of the silane in the presence of the cerium salt. The silane concentration was kept constant at 400 ppm, while the cerium ions variated in 25, 50, and 100 ppm. The electrochemical measurements showed inhibition efficiency (% I.E.) above 96% for carbon steel in NaCl 0.1mol L–1, in the best condition of the mixture of silanol and Ce (III) ions. The Raman spectroscopy confirmed the presence of inhibitors in the carbon steel surface even out of the solution containing the inhibitors as a persistent adsorbed film. Contact angle measurements showed the surface hydrophobicity imparted by the adsorbed corrosion inhibitor layer. SVET measurements confirmed that the corrosion inhibitors mixture can block both anodic and cathodic reactions. The studied inhibitors showed to be more efficient and/or cheaper than traditional corrosion inhibitors for neutral media. |
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2023-07-31T16:40:41Z2023-07-31T16:40:41Z20209487238734https://doi.org/10.1016/j.jmrt.2020.06.0112214-0697http://hdl.handle.net/1843/57235https://orcid.org/0000-0001-5980-0078https://orcid.org/0000-0002-8203-2625This work evaluated a corrosion inhibitor that consists of a mixture of a long chain silanol and cerium(III) salt, to protect carbon steel in 0.1mol L–1 NaCl solution. The inhibitor solution was obtained after hydrolysis of the silane in the presence of the cerium salt. The silane concentration was kept constant at 400 ppm, while the cerium ions variated in 25, 50, and 100 ppm. The electrochemical measurements showed inhibition efficiency (% I.E.) above 96% for carbon steel in NaCl 0.1mol L–1, in the best condition of the mixture of silanol and Ce (III) ions. The Raman spectroscopy confirmed the presence of inhibitors in the carbon steel surface even out of the solution containing the inhibitors as a persistent adsorbed film. Contact angle measurements showed the surface hydrophobicity imparted by the adsorbed corrosion inhibitor layer. SVET measurements confirmed that the corrosion inhibitors mixture can block both anodic and cathodic reactions. The studied inhibitors showed to be more efficient and/or cheaper than traditional corrosion inhibitors for neutral media.Este trabalho avaliou um inibidor de corrosão que consiste em uma mistura de silanol de cadeia longa e sal de cério(III), para proteger o aço carbono em solução de NaCl 0,1mol L–1. A solução inibidora foi obtida após hidrólise do silano na presença do sal de cério. A concentração de silano foi mantida constante em 400 ppm, enquanto os íons cério variaram em 25, 50 e 100 ppm. As medidas eletroquímicas mostraram eficiência de inibição (% I.E.) acima de 96% para o aço carbono em NaCl 0,1mol L–1, na melhor condição da mistura de íons silanol e Ce(III). A espectroscopia Raman confirmou a presença de inibidores na superfície do aço carbono mesmo fora da solução contendo os inibidores como um filme adsorvido persistente. As medições do ângulo de contato mostraram a hidrofobicidade da superfície transmitida pela camada de inibidor de corrosão adsorvida. As medições SVET confirmaram que a mistura de inibidores de corrosão pode bloquear reações anódicas e catódicas. Os inibidores estudados mostraram-se mais eficientes e/ou mais baratos que os inibidores de corrosão tradicionais para meios neutros.CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorOutra AgênciaengUniversidade Federal de Minas GeraisUFMGBrasilENG - DEPARTAMENTO DE ENGENHARIA QUÍMICAJournal of Materials Research and TechnologyEngenharia químicaAço-carbono - CorrosãoCérioSilanolCorrosion inhibitorSilanolCerium(III) ionsCarbon steelCerium saltChloride solutionEISOctylsilanolSVETOctylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutionsÍons octilsilanol e Ce(III): inibidores de corrosão alternativos para aço carbono em soluções neutras de cloretoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://www.sciencedirect.com/science/article/pii/S2238785420314125?via%3DihubFernando CottingIdalina Vieira Aokiapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/57235/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALOctylsilanol and Ce(III) ions alternative corrosion inhibitors for carbon steel in chloride neutral solutions.pdfOctylsilanol and Ce(III) ions alternative corrosion inhibitors for carbon steel in chloride neutral solutions.pdfapplication/pdf3594992https://repositorio.ufmg.br/bitstream/1843/57235/2/Octylsilanol%20and%20Ce%28III%29%20ions%20alternative%20corrosion%20inhibitors%20for%20carbon%20steel%20in%20chloride%20neutral%20solutions.pdfa10acc2732a6c1ad67a3fc60808cec96MD521843/572352023-07-31 13:40:41.865oai:repositorio.ufmg.br:1843/57235TElDRU7vv71BIERFIERJU1RSSUJVSe+/ve+/vU8gTu+/vU8tRVhDTFVTSVZBIERPIFJFUE9TSVTvv71SSU8gSU5TVElUVUNJT05BTCBEQSBVRk1HCiAKCkNvbSBhIGFwcmVzZW50Ye+/ve+/vW8gZGVzdGEgbGljZW7vv71hLCB2b2Pvv70gKG8gYXV0b3IgKGVzKSBvdSBvIHRpdHVsYXIgZG9zIGRpcmVpdG9zIGRlIGF1dG9yKSBjb25jZWRlIGFvIFJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRk1HIChSSS1VRk1HKSBvIGRpcmVpdG8gbu+/vW8gZXhjbHVzaXZvIGUgaXJyZXZvZ++/vXZlbCBkZSByZXByb2R1emlyIGUvb3UgZGlzdHJpYnVpciBhIHN1YSBwdWJsaWNh77+977+9byAoaW5jbHVpbmRvIG8gcmVzdW1vKSBwb3IgdG9kbyBvIG11bmRvIG5vIGZvcm1hdG8gaW1wcmVzc28gZSBlbGV0cu+/vW5pY28gZSBlbSBxdWFscXVlciBtZWlvLCBpbmNsdWluZG8gb3MgZm9ybWF0b3Mg77+9dWRpbyBvdSB277+9ZGVvLgoKVm9j77+9IGRlY2xhcmEgcXVlIGNvbmhlY2UgYSBwb2zvv710aWNhIGRlIGNvcHlyaWdodCBkYSBlZGl0b3JhIGRvIHNldSBkb2N1bWVudG8gZSBxdWUgY29uaGVjZSBlIGFjZWl0YSBhcyBEaXJldHJpemVzIGRvIFJJLVVGTUcuCgpWb2Pvv70gY29uY29yZGEgcXVlIG8gUmVwb3NpdO+/vXJpbyBJbnN0aXR1Y2lvbmFsIGRhIFVGTUcgcG9kZSwgc2VtIGFsdGVyYXIgbyBjb250Ze+/vWRvLCB0cmFuc3BvciBhIHN1YSBwdWJsaWNh77+977+9byBwYXJhIHF1YWxxdWVyIG1laW8gb3UgZm9ybWF0byBwYXJhIGZpbnMgZGUgcHJlc2VydmHvv73vv71vLgoKVm9j77+9IHRhbWLvv71tIGNvbmNvcmRhIHF1ZSBvIFJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRk1HIHBvZGUgbWFudGVyIG1haXMgZGUgdW1hIGPvv71waWEgZGUgc3VhIHB1YmxpY2Hvv73vv71vIHBhcmEgZmlucyBkZSBzZWd1cmFu77+9YSwgYmFjay11cCBlIHByZXNlcnZh77+977+9by4KClZvY++/vSBkZWNsYXJhIHF1ZSBhIHN1YSBwdWJsaWNh77+977+9byDvv70gb3JpZ2luYWwgZSBxdWUgdm9j77+9IHRlbSBvIHBvZGVyIGRlIGNvbmNlZGVyIG9zIGRpcmVpdG9zIGNvbnRpZG9zIG5lc3RhIGxpY2Vu77+9YS4gVm9j77+9IHRhbWLvv71tIGRlY2xhcmEgcXVlIG8gZGVw77+9c2l0byBkZSBzdWEgcHVibGljYe+/ve+/vW8gbu+/vW8sIHF1ZSBzZWphIGRlIHNldSBjb25oZWNpbWVudG8sIGluZnJpbmdlIGRpcmVpdG9zIGF1dG9yYWlzIGRlIG5pbmd177+9bS4KCkNhc28gYSBzdWEgcHVibGljYe+/ve+/vW8gY29udGVuaGEgbWF0ZXJpYWwgcXVlIHZvY++/vSBu77+9byBwb3NzdWkgYSB0aXR1bGFyaWRhZGUgZG9zIGRpcmVpdG9zIGF1dG9yYWlzLCB2b2Pvv70gZGVjbGFyYSBxdWUgb2J0ZXZlIGEgcGVybWlzc++/vW8gaXJyZXN0cml0YSBkbyBkZXRlbnRvciBkb3MgZGlyZWl0b3MgYXV0b3JhaXMgcGFyYSBjb25jZWRlciBhbyBSZXBvc2l077+9cmlvIEluc3RpdHVjaW9uYWwgZGEgVUZNRyBvcyBkaXJlaXRvcyBhcHJlc2VudGFkb3MgbmVzdGEgbGljZW7vv71hLCBlIHF1ZSBlc3NlIG1hdGVyaWFsIGRlIHByb3ByaWVkYWRlIGRlIHRlcmNlaXJvcyBlc3Tvv70gY2xhcmFtZW50ZSBpZGVudGlmaWNhZG8gZSByZWNvbmhlY2lkbyBubyB0ZXh0byBvdSBubyBjb250Ze+/vWRvIGRhIHB1YmxpY2Hvv73vv71vIG9yYSBkZXBvc2l0YWRhLgoKQ0FTTyBBIFBVQkxJQ0Hvv73vv71PIE9SQSBERVBPU0lUQURBIFRFTkhBIFNJRE8gUkVTVUxUQURPIERFIFVNIFBBVFJPQ++/vU5JTyBPVSBBUE9JTyBERSBVTUEgQUfvv71OQ0lBIERFIEZPTUVOVE8gT1UgT1VUUk8gT1JHQU5JU01PLCBWT0Pvv70gREVDTEFSQSBRVUUgUkVTUEVJVE9VIFRPRE9TIEUgUVVBSVNRVUVSIERJUkVJVE9TIERFIFJFVklT77+9TyBDT01PIFRBTULvv71NIEFTIERFTUFJUyBPQlJJR0Hvv73vv71FUyBFWElHSURBUyBQT1IgQ09OVFJBVE8gT1UgQUNPUkRPLgoKTyBSZXBvc2l077+9cmlvIEluc3RpdHVjaW9uYWwgZGEgVUZNRyBzZSBjb21wcm9tZXRlIGEgaWRlbnRpZmljYXIgY2xhcmFtZW50ZSBvIHNldSBub21lKHMpIG91IG8ocykgbm9tZXMocykgZG8ocykgZGV0ZW50b3IoZXMpIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBkYSBwdWJsaWNh77+977+9bywgZSBu77+9byBmYXLvv70gcXVhbHF1ZXIgYWx0ZXJh77+977+9bywgYWzvv71tIGRhcXVlbGFzIGNvbmNlZGlkYXMgcG9yIGVzdGEgbGljZW7vv71hLgo=Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-07-31T16:40:41Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
dc.title.alternative.pt_BR.fl_str_mv |
Íons octilsilanol e Ce(III): inibidores de corrosão alternativos para aço carbono em soluções neutras de cloreto |
title |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
spellingShingle |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions Fernando Cotting Corrosion inhibitor Silanol Cerium(III) ions Carbon steel Cerium salt Chloride solution EIS Octylsilanol SVET Engenharia química Aço-carbono - Corrosão Cério Silanol |
title_short |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
title_full |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
title_fullStr |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
title_full_unstemmed |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
title_sort |
Octylsilanol and Ce(III) ions: alternative corrosion inhibitors for carbon steel in chloride neutral solutions |
author |
Fernando Cotting |
author_facet |
Fernando Cotting Idalina Vieira Aoki |
author_role |
author |
author2 |
Idalina Vieira Aoki |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Fernando Cotting Idalina Vieira Aoki |
dc.subject.por.fl_str_mv |
Corrosion inhibitor Silanol Cerium(III) ions Carbon steel Cerium salt Chloride solution EIS Octylsilanol SVET |
topic |
Corrosion inhibitor Silanol Cerium(III) ions Carbon steel Cerium salt Chloride solution EIS Octylsilanol SVET Engenharia química Aço-carbono - Corrosão Cério Silanol |
dc.subject.other.pt_BR.fl_str_mv |
Engenharia química Aço-carbono - Corrosão Cério Silanol |
description |
This work evaluated a corrosion inhibitor that consists of a mixture of a long chain silanol and cerium(III) salt, to protect carbon steel in 0.1mol L–1 NaCl solution. The inhibitor solution was obtained after hydrolysis of the silane in the presence of the cerium salt. The silane concentration was kept constant at 400 ppm, while the cerium ions variated in 25, 50, and 100 ppm. The electrochemical measurements showed inhibition efficiency (% I.E.) above 96% for carbon steel in NaCl 0.1mol L–1, in the best condition of the mixture of silanol and Ce (III) ions. The Raman spectroscopy confirmed the presence of inhibitors in the carbon steel surface even out of the solution containing the inhibitors as a persistent adsorbed film. Contact angle measurements showed the surface hydrophobicity imparted by the adsorbed corrosion inhibitor layer. SVET measurements confirmed that the corrosion inhibitors mixture can block both anodic and cathodic reactions. The studied inhibitors showed to be more efficient and/or cheaper than traditional corrosion inhibitors for neutral media. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2023-07-31T16:40:41Z |
dc.date.available.fl_str_mv |
2023-07-31T16:40:41Z |
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/1843/57235 |
dc.identifier.doi.pt_BR.fl_str_mv |
https://doi.org/10.1016/j.jmrt.2020.06.011 |
dc.identifier.issn.pt_BR.fl_str_mv |
2214-0697 |
dc.identifier.orcid.pt_BR.fl_str_mv |
https://orcid.org/0000-0001-5980-0078 https://orcid.org/0000-0002-8203-2625 |
url |
https://doi.org/10.1016/j.jmrt.2020.06.011 http://hdl.handle.net/1843/57235 https://orcid.org/0000-0001-5980-0078 https://orcid.org/0000-0002-8203-2625 |
identifier_str_mv |
2214-0697 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Materials Research and Technology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.publisher.initials.fl_str_mv |
UFMG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
ENG - DEPARTAMENTO DE ENGENHARIA QUÍMICA |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
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Universidade Federal de Minas Gerais (UFMG) |
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UFMG |
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UFMG |
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Repositório Institucional da UFMG |
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