Publicação
Experimental Evaluation and Theoretical Study of Imidazolium and Benzimidazolium. Derivatives as Corrosion Inhibitors of Mild Steel in a 0.5 M H2SO4 Solution
| Resumo: | Abstract (dimOHmIm)+,I- and (dimOHmBim)+,I- were investigated as a corrosion inhibitors for MS in 0.5 M H2SO4 using gravimetric, PDP and EIS techniques. Polarization curves revealed that both compounds acted as mixed-type inhibitors, and that corrosion IE% increased with their higher concentrations. The adsorption of both inhibitors onto the MS surface obeyed Langmuir’s isotherm. The compound II showed a higher corrosion IE% than that of I. The quantum chemical calculations were applied to investigate the relationship between the two azolium salts derivatives electronic properties and their corrosion IE%. |
|---|---|
| Autores principais: | Said,Mohamed Elhadi |
| Outros Autores: | Bouchouit,Mehdi; Zaiter,Abdellah; Mezhoud,Bilel; Bouacida,Sofiane; Chibani,Aissa; Bouraiou,Abdelmalek |
| Assunto: | imidazolium and benzimidazolium salts MS polarization EIS WL and corrosion inhibition |
| Ano: | 2023 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Fundação para a Ciência e Tecnologia |
| Idioma: | inglês |
| Origem: | SciELO Portugal |
| Resumo: | Abstract (dimOHmIm)+,I- and (dimOHmBim)+,I- were investigated as a corrosion inhibitors for MS in 0.5 M H2SO4 using gravimetric, PDP and EIS techniques. Polarization curves revealed that both compounds acted as mixed-type inhibitors, and that corrosion IE% increased with their higher concentrations. The adsorption of both inhibitors onto the MS surface obeyed Langmuir’s isotherm. The compound II showed a higher corrosion IE% than that of I. The quantum chemical calculations were applied to investigate the relationship between the two azolium salts derivatives electronic properties and their corrosion IE%. |
|---|