Detalhes bibliográficos
| Resumo: | Abstract Carbon steel corrosion inhibition in a hydrochloric acid solution by 2-((5-methyl-isoxazol-3-yl)-methyl)-benzimidazole (MMB) has been studied by electrochemical techniques (PDP and EIS). Results showed that the inhibition efficiency increases with higher MMB concentration, and the maximum value of 86.6% was obtained at 10-3 M concentration. The prepared benzimidazole inhibitor showed higher inhibition efficiency upon raising the solution temperature from 303 to 333 K. Corrosion current density decreased from 660.9 µA cm-2 (blank) to 97.8 µA cm-2 (MMB) and charge transfer resistance increased from 20.2 Ω cm2 (blank) to 150.8 Ω cm2 (MMB). PDP studies showed that MMB is a mixed type inhibitor. The adsorption of this compound onto the carbon steel surface in a 1 M HCl solution followed the Langmuir adsorption isotherm, and the value of the standard free energy of adsorption () is associated to physisorption and chemisorption. |
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| Autores principais: | Sebhaoui,J. |
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| Outros Autores: | Aoufir,Y. El; Bakri,Y. El; Bourazmi,H.; Ali,A. Ben; Guenbour,A.; Oudda,H.; Zarrouk,A.; Essassi,E.M. |
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| Assunto: | carbon steel corrosion inhibition Benzimidazole electrochemical techniques |
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| Ano: | 2021 |
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| País: | Portugal |
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| Tipo de documento: | artigo |
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| Tipo de acesso: | acesso aberto |
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| Instituição associada: | Fundação para a Ciência e Tecnologia |
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| Idioma: | inglês |
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| Origem: | SciELO Portugal |
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