Title :

Experimental studies and computational exploration on the 2-amino-5-(2-methoxyphenyl)-1,3,4-thiadiazole as novel corrosion inhibitor for mild steel in acidic environment

Author(s) :

Attou, A. [Auteur]
Centre Universitaire Dr. Moulay Tahar de Saïda (ALGERIA)
Tourabi, M. [Auteur]
Université Chouaib Doukkali [UCD]
Benikdes, A. [Auteur]
Centre Universitaire Dr. Moulay Tahar de Saïda (ALGERIA)
Benali, O. [Auteur]
Centre Universitaire Dr. Moulay Tahar de Saïda (ALGERIA)
Ouici, H.B. [Auteur]
Centre Universitaire Dr. Moulay Tahar de Saïda (ALGERIA)
Benhiba, F. [Auteur]
Université Ibn Tofaïl [UIT]
Université Mohammed V de Rabat [Agdal] [UM5]
Zarrouk, A. [Auteur]
Université Mohammed V de Rabat [Agdal] [UM5]
Jama, charafeddine [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Bentiss, Fouad [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Université Chouaib Doukkali [UCD]

Journal title :

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Pages :

125320

Publisher :

Elsevier BV

Publication date :

2020-11

ISSN :

0927-7757

HAL domain(s) :

Chimie/Polymères
Chimie/Matériaux

English abstract : [en]

In the present research, a new 1,3,4-thiadiazole derivative, namely the 2-amino-5-(2-methoxyphenyl)-1,3,4-thiadiazole (5-AMT) was synthesized and investigated as corrosion inhibitor for mild steel (M-steel) in molar ...
Show more >In the present research, a new 1,3,4-thiadiazole derivative, namely the 2-amino-5-(2-methoxyphenyl)-1,3,4-thiadiazole (5-AMT) was synthesized and investigated as corrosion inhibitor for mild steel (M-steel) in molar hydrochloric acid medium. The experimental studies such as weight loss, potentiodynamic polarization (PDP), Linear polarization resistance (LPR) technique and electrochemical impedance spectroscopy (EIS) were performed in order to evaluate the corrosion protection performance of the tested compound. Based on the experimental outcomes, a protection degree of approximately 98 % was achieved exploiting 5 × 10−4 M of 5-AMT after 1 h of immersion at temperature 303 K. Additionally, PDP study highlighted that the investigated 1,3,4-thiadiazole is of mixed-kind inhibitor. Thermodynamic data from adsorption isotherms and activation energies were determined and discussed. It was shown that the adsorption of 5-AMT molecules fits Langmuir isotherm model. Furthermore, in order to characterize the M-steel surface and to comprehend the adsorption mechanism of 5-AMT, XPS analyses were accomplished. Computational studies by DFT and MD simulation were also conducted to correlate the protection properties and quantum chemical parameters of the investigated inhibitor.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 :

2020-08-07T09:22:55Z
2020-08-31T13:16:48Z