Titre :

Enhanced corrosion resistance of mild steel in molar hydrochloric acid solution by 1,4-bis(2-pyridyl)-5H-pyridazino[4,5-b]indole: Electrochemical, theoretical and XPS studies

Auteur(s) :

Bentiss, F. [Auteur]
Laboratoire de cristallochimie et physicochimie du solide [LCPS]
Gassama, F. [Auteur]
Laboratoire de Chimie Organique [LCO]
Barbry, Didier [Auteur]
Laboratoire de Chimie Organique [LCO]
Gengembre, L. [Auteur]
Laboratoire de catalyse de Lille - UMR 8010 [LCL]
Vezin, Herve [Auteur]
Laboratoire de Chimie Organique et Macromoleculaire [UMR CNRS 8009]
Lagrenée, M. [Auteur]
Laboratoire de cristallochimie et physicochimie du solide [LCPS]
Traisnel, Michel [Auteur]

Titre de la revue :

Applied Surface Science

Numéro :

252

Pagination :

2684-2691

Éditeur :

Elsevier BV

Date de publication :

2006-02-15

ISSN :

0169-4332

Mot(s)-clé(s) en anglais :

Corrosion inhibition
Mild steel
Pyridazine
HCl solution
Adsorption

Discipline(s) HAL :

Chimie/Autre

Résumé en anglais : [en]

The inhibition effect of the new pyridazine derivative, namely 1,4-bis(2-pyridyl)-5H-pyridazino[4,5-b]indole (PPI) against mild steel corrosion in 1 M HCl solutions was evaluated using weigh loss and electrochemical ...
Lire la suite >The inhibition effect of the new pyridazine derivative, namely 1,4-bis(2-pyridyl)-5H-pyridazino[4,5-b]indole (PPI) against mild steel corrosion in 1 M HCl solutions was evaluated using weigh loss and electrochemical techniques (potentiodynamic polarisation curves and impedance spectroscopy). The experimental results suggest that PPI is a good corrosion inhibitor and the inhibition efficiency increased with the increase of PPI concentration, while the adsorption followed the Langmuir isotherm. X-ray photoelectron spectroscopy (XPS) and theoretical calculation of electronic density were carried out to establish the mechanism of corrosion inhibition of mild steel with PPI in 1 M HCl medium. The inhibition action of this compound was, assumed to occur via adsorption on the steel surface through the active centres contained of the molecule. The corrosion inhibition is due to the formation of a chemisorbed film on the steel surface.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS

Collections :

• Autres travaux scientifiques

Date de dépôt :

2021-06-18T09:16:27Z
2021-10-12T10:32:06Z