Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/00986445.2021.1940154 http://hdl.handle.net/11449/221777 |
Resumo: | In many industries, safe organic inhibitors that are soluble in corrosive media, environmentally friendly, and effective need to be developed for protection against corrosion during descaling and steel pickling in dilute acids. In this work we describe, for the first time, the effects of 2-(nitromethylene) oxazolidine (OXA) and 2-(nitromethylene) imidazolidine (IMD) as inhibitors of the corrosion of SAE 1020 steel in 0.1 mol L−1 HCl aqueous solution. Electrochemical analyses showed that the IMD inhibitor was most effective, acting as a mixed type inhibitor. SEM analysis confirmed the electrochemical results, clearly showing the excellent corrosion inhibition effect of IMD. The corrosion inhibition was related to the protective film deposited on the surface, forming a layer that reduced the corrosion reactions. DFT calculations showed that donor and acceptor interactions between the heterocyclic nitrogen lone pair electrons and the vacant d orbitals of the metal surface atoms could explain the better corrosion inhibition values obtained for IMD. Finally, in addition to its efficiency, in silico toxicity predictions indicated that IMD could be considered environmentally friendly. |
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Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solutionCorrosion inhibitiondensity functional theoryelectrochemical impedance spectroscopyimidazolidineoxazolidinepolarization curvesIn many industries, safe organic inhibitors that are soluble in corrosive media, environmentally friendly, and effective need to be developed for protection against corrosion during descaling and steel pickling in dilute acids. In this work we describe, for the first time, the effects of 2-(nitromethylene) oxazolidine (OXA) and 2-(nitromethylene) imidazolidine (IMD) as inhibitors of the corrosion of SAE 1020 steel in 0.1 mol L−1 HCl aqueous solution. Electrochemical analyses showed that the IMD inhibitor was most effective, acting as a mixed type inhibitor. SEM analysis confirmed the electrochemical results, clearly showing the excellent corrosion inhibition effect of IMD. The corrosion inhibition was related to the protective film deposited on the surface, forming a layer that reduced the corrosion reactions. DFT calculations showed that donor and acceptor interactions between the heterocyclic nitrogen lone pair electrons and the vacant d orbitals of the metal surface atoms could explain the better corrosion inhibition values obtained for IMD. Finally, in addition to its efficiency, in silico toxicity predictions indicated that IMD could be considered environmentally friendly.Programa de Pós-Graduação em Engenharia Metalúrgica (PPGEM) Universidade Federal FluminensePrograma de Pós-Graduação em Engenharia Mecânica Universidade Estadual PaulistaDepartamento de Química Instituto de Ciências Exatas Universidade Federal FluminenseDepartamento de Ciências Exatas Escola de Engenharia Industrial e Metalurgia de Volta RedondaPrograma de Pós-Graduação em Engenharia Mecânica Universidade Estadual PaulistaUniversidade Federal Fluminense (UFF)Universidade Estadual Paulista (UNESP)Escola de Engenharia Industrial e Metalurgia de Volta RedondaSilva, Matheus GomesCosta, Alberto Nei Carvalho [UNESP]Sangi, Diego PereiraYoneda, JullianeCoelho, Lilian WeitzelFerreira, Elivelton Alves2022-04-28T19:40:21Z2022-04-28T19:40:21Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1080/00986445.2021.1940154Chemical Engineering Communications.1563-52010098-6445http://hdl.handle.net/11449/22177710.1080/00986445.2021.19401542-s2.0-85107936189Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengChemical Engineering Communicationsinfo:eu-repo/semantics/openAccess2022-04-28T19:40:21Zoai:repositorio.unesp.br:11449/221777Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:48:48.169836Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
title |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
spellingShingle |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution Silva, Matheus Gomes Corrosion inhibition density functional theory electrochemical impedance spectroscopy imidazolidine oxazolidine polarization curves |
title_short |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
title_full |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
title_fullStr |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
title_full_unstemmed |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
title_sort |
Comparative study of oxazolidine and imidazolidine compounds as inhibitors of SAE 1020 steel corrosion in aqueous HCl solution |
author |
Silva, Matheus Gomes |
author_facet |
Silva, Matheus Gomes Costa, Alberto Nei Carvalho [UNESP] Sangi, Diego Pereira Yoneda, Julliane Coelho, Lilian Weitzel Ferreira, Elivelton Alves |
author_role |
author |
author2 |
Costa, Alberto Nei Carvalho [UNESP] Sangi, Diego Pereira Yoneda, Julliane Coelho, Lilian Weitzel Ferreira, Elivelton Alves |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal Fluminense (UFF) Universidade Estadual Paulista (UNESP) Escola de Engenharia Industrial e Metalurgia de Volta Redonda |
dc.contributor.author.fl_str_mv |
Silva, Matheus Gomes Costa, Alberto Nei Carvalho [UNESP] Sangi, Diego Pereira Yoneda, Julliane Coelho, Lilian Weitzel Ferreira, Elivelton Alves |
dc.subject.por.fl_str_mv |
Corrosion inhibition density functional theory electrochemical impedance spectroscopy imidazolidine oxazolidine polarization curves |
topic |
Corrosion inhibition density functional theory electrochemical impedance spectroscopy imidazolidine oxazolidine polarization curves |
description |
In many industries, safe organic inhibitors that are soluble in corrosive media, environmentally friendly, and effective need to be developed for protection against corrosion during descaling and steel pickling in dilute acids. In this work we describe, for the first time, the effects of 2-(nitromethylene) oxazolidine (OXA) and 2-(nitromethylene) imidazolidine (IMD) as inhibitors of the corrosion of SAE 1020 steel in 0.1 mol L−1 HCl aqueous solution. Electrochemical analyses showed that the IMD inhibitor was most effective, acting as a mixed type inhibitor. SEM analysis confirmed the electrochemical results, clearly showing the excellent corrosion inhibition effect of IMD. The corrosion inhibition was related to the protective film deposited on the surface, forming a layer that reduced the corrosion reactions. DFT calculations showed that donor and acceptor interactions between the heterocyclic nitrogen lone pair electrons and the vacant d orbitals of the metal surface atoms could explain the better corrosion inhibition values obtained for IMD. Finally, in addition to its efficiency, in silico toxicity predictions indicated that IMD could be considered environmentally friendly. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-04-28T19:40:21Z 2022-04-28T19:40:21Z |
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://dx.doi.org/10.1080/00986445.2021.1940154 Chemical Engineering Communications. 1563-5201 0098-6445 http://hdl.handle.net/11449/221777 10.1080/00986445.2021.1940154 2-s2.0-85107936189 |
url |
http://dx.doi.org/10.1080/00986445.2021.1940154 http://hdl.handle.net/11449/221777 |
identifier_str_mv |
Chemical Engineering Communications. 1563-5201 0098-6445 10.1080/00986445.2021.1940154 2-s2.0-85107936189 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Chemical Engineering Communications |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128566325411840 |