Assessment of Sustainable Ethanolamine-Based Protic Ionic Liquids with Varied Carboxylic Acid Chains as Corrosion Inhibitors for Carbon Steel in Saline Environments

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Autor(es): dc.contributorFederal University of Ceará (UFC)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorCeará State University (UECE)-
Autor(es): dc.contributorFederal University of Maranhão (UFMA)-
Autor(es): dc.contributorReliability and Micromechanics of Materials (CIEFMA)-
Autor(es): dc.contributorUniversitat Politècnica de Catalunya (UPC)-
Autor(es): dc.creatorPascoal, Caio Victor Pereira-
Autor(es): dc.creatorDa Silva, Lucas Renan Rocha-
Autor(es): dc.creatorFlorez, Mauro Andres Cerra-
Autor(es): dc.creatorCavalcante, Thiago Roberto Felisardo-
Autor(es): dc.creatorAvila, Julian Arnaldo-
Autor(es): dc.creatorSalomão, Francisco Carlos Carneiro Soares-
Autor(es): dc.creatorBarros, Eduardo Bedê-
Autor(es): dc.creatorAvelino, Francisco-
Autor(es): dc.creatorLomonaco, Diego-
Autor(es): dc.creatorPinheiro, Regiane Silva-
Autor(es): dc.creatorde Sant’Ana, Hosiberto-
Autor(es): dc.creatorRezayat, Mohammad-
Autor(es): dc.creatorMateo, Antonio-
Autor(es): dc.creatorFargas, Gemma-
Autor(es): dc.creatorAraújo, Walney Silva-
Data de aceite: dc.date.accessioned2025-08-21T22:33:57Z-
Data de disponibilização: dc.date.available2025-08-21T22:33:57Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/molecules30051033-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297959-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297959-
Descrição: dc.descriptionThe inhibitory performance of three distinct protic ionic liquids (PILs), namely, 2-hydroxyethyl ammonium formate (PIL 01), 2-hydroxyethyl ammonium propionate (PIL 02), and 2-hydroxyethyl ammonium pentanoate (PIL 03), was evaluated to determine their suitability as eco-friendly corrosion inhibitors for carbon steel (ASTM A36) in a 3.5 wt. % NaCl aerated neutral electrolyte solution. Standard corrosion inhibitor assessment methods, including electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), weight loss measurements, and microscopic techniques (SEM and optical microscopy), were employed to examine the steel surface and corrosion rate. There is a general agreement that the inhibition efficacy is directly associated with the adsorption capacity of substances on the surface of an investigated material, normally stainless or carbon steel. The standard free energies of adsorption were approximately −22 kJ mol−1, indicating a physical adsorption type of interaction between ionic liquids and the electrode surface. The adsorption behavior of protic ionic liquids on an A36 steel surface conforms to a Langmuir-type isotherm. In conclusion, PIL 01 demonstrated an inhibition efficiency exceeding 80%, while PILs 02 and 03 exhibited efficacies in the 50–60% range. The inhibition efficiency was observed to be proportional to the inhibitor’s concentration. These results suggest that PIL 01, PIL 02, and PIL 03 exhibit significant corrosion inhibition properties.-
Descrição: dc.descriptionDepartment of Metallurgical and Materials Engineering Federal University of Ceará (UFC), CE-
Descrição: dc.descriptionDepartment of Materials Engineering São Carlos School of Engineering (EESC) University of São Paulo (USP), São Carlos, SP-
Descrição: dc.descriptionDepartment of Aeronautic Engineering São Paulo State University (UNESP), São João da Boa Vista, SP-
Descrição: dc.descriptionScience and Technology Center Ceará State University (UECE), CE-
Descrição: dc.descriptionDepartment of Physics Federal University of Ceará (UFC), CE-
Descrição: dc.descriptionDepartment of Chemistry Federal University of Ceará (UFC), CE-
Descrição: dc.descriptionDepartment of Food Engineering Federal University of Maranhão (UFMA), MA-
Descrição: dc.descriptionDepartment of Chemical Engineering Federal University of Ceará (UFC), CE-
Descrição: dc.descriptionDepartment of Materials Science and Engineering School of Engineering of Barcelona (EEBE) Universitat Politècnica de Catalunya (UPC) Center for Structural Integrity Reliability and Micromechanics of Materials (CIEFMA)-
Descrição: dc.descriptionBarcelona Research Center in Multiscale Science and Engineering Universitat Politècnica de Catalunya (UPC)-
Descrição: dc.descriptionDepartment of Aeronautic Engineering São Paulo State University (UNESP), São João da Boa Vista, SP-
Idioma: dc.languageen-
Relação: dc.relationMolecules-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcarbon steel-
Palavras-chave: dc.subjectcorrosion inhibitor-
Palavras-chave: dc.subjectelectrochemistry-
Palavras-chave: dc.subjectprotic ionic liquids-
Palavras-chave: dc.subjectsaline environment-
Título: dc.titleAssessment of Sustainable Ethanolamine-Based Protic Ionic Liquids with Varied Carboxylic Acid Chains as Corrosion Inhibitors for Carbon Steel in Saline Environments-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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