Documents disponibles écrits par cet auteur

Corrosion inhibition and adsorption behavior of punica granatum extract on mild steel in acidic environments / Maduabuchi A. Chidiebere in Industrial & engineering chemistry research, Vol. 51 N° 2 (Janvier 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 2 (Janvier 2012) . - pp. 668-677 Titre : Corrosion inhibition and adsorption behavior of punica granatum extract on mild steel in acidic environments : Experimental and theoretical studies Type de document : texte imprimé Auteurs : Maduabuchi A. Chidiebere, Auteur ; Cynthia E. Ogukwe, Auteur ; Kanayo L. Oguzie, Auteur Année de publication : 2012 Article en page(s) : pp. 668-677 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Mild  steel  Extract  Adsorption  Corrosion  inhibition Résumé : The adsorption and corrosion inhibiting effect of aqueous extracts of Punica granatum (PNG) on mild steel in 1 M HCl and 0.5 M H2SO4 at 30 ± 1 °C was investigated using gravimetric, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization techniques. The experimental findings revealed that PNG inhibited the corrosion reaction in both acid environments. Impedance results indicate that the extract organic matter was adsorbed on the metal/solution interface, while polarization data show that the extract behaved mostly as a mixed-type inhibitor. A theoretical study of the adsorption behavior of some of the components of the crude extracts was carried out in the framework of the density functional theory (DFT). DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25476398 [article] Corrosion inhibition and adsorption behavior of punica granatum extract on mild steel in acidic environments : Experimental and theoretical studies [texte imprimé] / Maduabuchi A. Chidiebere, Auteur ; Cynthia E. Ogukwe, Auteur ; Kanayo L. Oguzie, Auteur . - 2012 . - pp. 668-677. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 2 (Janvier 2012) . - pp. 668-677 Mots-clés : Mild  steel  Extract  Adsorption  Corrosion  inhibition Résumé : The adsorption and corrosion inhibiting effect of aqueous extracts of Punica granatum (PNG) on mild steel in 1 M HCl and 0.5 M H2SO4 at 30 ± 1 °C was investigated using gravimetric, electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization techniques. The experimental findings revealed that PNG inhibited the corrosion reaction in both acid environments. Impedance results indicate that the extract organic matter was adsorbed on the metal/solution interface, while polarization data show that the extract behaved mostly as a mixed-type inhibitor. A theoretical study of the adsorption behavior of some of the components of the crude extracts was carried out in the framework of the density functional theory (DFT). DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25476398