Title :

Bagassa guianensis ethanol extract used as sustainable eco-friendly inhibitor for zinc corrosion in 3% NaCl: Electrochemical and XPS studies

Author(s) :

Lebrini, Mounim [Auteur]
Laboratoire des matériaux et molécules en milieu Agressif [UR4_1] [L3MA]
Suedile, Fabienne [Auteur]
Laboratoire des matériaux et molécules en milieu Agressif [UR4_1] [L3MA]
Salvin, Paule [Auteur]
Laboratoire des matériaux et molécules en milieu Agressif [UR4_1] [L3MA]
Roos, Christophe [Auteur]
Laboratoire des matériaux et molécules en milieu Agressif [UR4_1] [L3MA]
Zarrouk, Abdelkader [Auteur]

Jama, charafeddine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bentiss, Fouad [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]

Journal title :

Surfaces and Interfaces

Abbreviated title :

Surfaces and Interfaces

Pages :

100588

Publisher :

Elsevier BV

Publication date :

2020-09

ISSN :

2468-0230

English keyword(s) :

Bagassa guianensis
Green corrosion inhibitor
Zinc protection
Electrochemical studies
XPS

HAL domain(s) :

Chimie/Matériaux
Chimie/Polymères

English abstract : [en]

In view of the huge advantages of green corrosion inhibitors and in order to solve the problem of environmental pollution in the process of cleaning the zinc metal, this study is the evaluation of Bagassa guianensis extract ...
Show more >In view of the huge advantages of green corrosion inhibitors and in order to solve the problem of environmental pollution in the process of cleaning the zinc metal, this study is the evaluation of Bagassa guianensis extract on the corrosion behaviour of zinc in chloride medium (3%) was realised using electrochemical techniques (polarisation and AC impedance). This study demonstrated that the plant extract of Bagassa guianensis is a real as sustainable and green inhibitor for zinc corrosion in 3% NaCl with an inhibition efficiency of about 97% at 100 ppm. The electrochemical reactions were both impacted by the existence of the green inhibitor on the basis of the polarization curves and a change towards the positive potentials was measured in the presence of the extract in 3% NaCl. A CPEα, Q determined by fit and graphical methods plotted by synthetic data, was utilized. In order to determine the chemical compounds mainly responsible for the corrosion inhibition of the extract, electrochemical studies were carried out on each family contained in the plant extract. To comprehend the adsorption mechanism of total extract and flavonoids extract for zinc in the saline solution, XPS technique was accomplished. The obtained results indicated the establishment of protective film inclosing the Bagassa guianensis extract and the flavonoids compounds. The mechanism of corrosion protection of Bagassa guianensis extract was discussed with PDP, EIS, isothermal adsorption model and XPS technique.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Ingénierie des Systèmes Polymères

Submission date :

2020-09-15T16:47:52Z
2020-10-06T14:38:43Z