Experimental and Theoretical Studies of the Corrosion Inhibition of 4-amino-2-(4-chlorophenyl)-8-(2, 3-dimethoxyphenyl)-6-oxo-2, 6-dihydropyrimido [2, 1-b][1, 3] thiazine-3,7-dicarbonitrile on Carbon Steel in a 1.0 M HCl Solution
| Autor: | Said Boukhris, Abdelaziz Souizi, Houda Serrar, H. Oudda, R. Salghi, A. Zarguil, Zakaria Benzekri, H Essebaai, Amina Hassikou, M. Larouj, H L Gaz |
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| Rok vydání: | 2018 |
| Předmět: |
Carbon steel
010405 organic chemistry carbon steel corrosion inhibition engineering.material 010402 general chemistry DFT 01 natural sciences 0104 chemical sciences Corrosion chemistry.chemical_compound theoretical studies chemistry Thiazine Electrochemistry engineering pyrimidothiazine Nuclear chemistry |
| Zdroj: | Portugaliae Electrochimica Acta, Volume: 36, Issue: 1, Pages: 35-52, Published: JAN 2018 Portugaliae Electrochimica Acta v.36 n.1 2018 Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação instacron:RCAAP |
| ISSN: | 1647-1571 |
| Popis: | The corrosion inhibition of carbon steel in a 1.0 M HCl solution, using 4-amino-2-(4 chlorophenyl)-8-(2,3-dimethoxyphenyl)-6-oxo-2,6-dihydropyrimido [2,1b] [1,3] thiazine- 3,7-dicarbonitrile (ACMPT) was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and quantum chemical calculations. Polarization curves indicate that the studied compound was acting as a mixed inhibitor with predominant cathodic effectiveness. The inhibition efficiency decreased with an increased temperature, and the thermodynamic and activation parameters obtained from this study were discussed. The adsorption behavior of ACMT follows Langmuir's isotherm. In addition, Density Function Theory (DFT) calculations were performed on the studied molecule. The theoretical parameters obtained from this method are in good agreement with the experimental results. |
| Databáze: | OpenAIRE |
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