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http://dspace.univ-bouira.dz:8080/jspui/handle/123456789/10396| Titre: | The Inhibition and Adsorption Processes of L-Cysteine Against the Corrosion of XC 18 Carbon Steel in 2N H2SO4 |
| Auteur(s): | Touafri, L. Kadri, A. Khelifa, A. Aimeur, Nacira Benbrahim, N. |
| Mots-clés: | L-cysteine ac impedance corrosion inhibition carbon steel sulphuiric acid |
| Date de publication: | 2008 |
| Editeur: | Université de Bouira |
| Référence bibliographique: | Journal of engineering and applied sciences;Volume: 3 ,Issue: 9 ,Page No. 688 - 696 |
| Résumé: | The inhibition effect of L-cysteine as environmentally friendly corrosion inhibitor for XC 18 carbon steel in stirred 2 N sulphuric acid has been investigated by electrochemical techniques. The impedance measurements showed that the inhibition efficiency increased with the increase of inhibitor concentration to reach more than 84% at 500 mg L-1 and indicated that the amino acid act as mixed type inhibitor, while the adsorption followed the Langmuir isotherm. Effect of temperature is also studied in the 30-60�C range. The values of adsorption free energy ( G0ads) and activation energies (Ea) reveal a physical adsorption of the inhibitor on the steel surface. |
| URI/URL: | http://dspace.univ-bouira.dz:8080/jspui/handle/123456789/10396 |
| Collection(s) : | Articles |
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| Fichier | Description | Taille | Format | |
|---|---|---|---|---|
| The Inhibition and Adsorption Processes of L-Cysteine Against the Corrosion of XC 18 Carbon Steel in 2N H2SO4.pdf | 590,83 kB | Adobe PDF | Voir/Ouvrir |
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