An experimental and theoretical correlation of inhibition effect of some dihydropyridine on mild steel in 1 M HCL
| Autor: | Said Belaaouad, Ismail Fahim, Malika Tridane |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Tafel equation
Chemistry 020209 energy technology industry and agriculture Dihydropyridine Langmuir adsorption model 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials Corrosion Dielectric spectroscopy symbols.namesake Adsorption 0202 electrical engineering electronic engineering information engineering symbols medicine Gravimetric analysis 0210 nano-technology Polarization (electrochemistry) Instrumentation Nuclear chemistry medicine.drug |
| Zdroj: | The European Physical Journal Applied Physics. 93:21301 |
| ISSN: | 1286-0050 1286-0042 |
| DOI: | 10.1051/epjap/2021200229 |
| Popis: | The corrosion inhibition of mild steel in 1 M HCl solution by some dihydropyridine has been studied using gravimetric, electrochemical impedance spectroscopy, potentiodynamic polarization techniques and quantum chemical study. The results of weight loss and Tafel polarization measurements showed that among the studied compounds, Isradipine has good inhibiting properties for steel corrosion in acidic bath, with 98% inhibition efficiency at optimum concentration 400 ppm. The inhibition is of a mixed anodic–cathodic nature. The adsorption behaviour of the investigated compounds is found to obey Langmuir adsorption isotherm. Quantum chemical parameters were correlated with the experimental results. |
| Databáze: | OpenAIRE |
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