Corrosion Inhibition Behavior of Quinoxaline Derivative as a Green Corrosion Inhibitor for Mild Steel in Hydrochloric Acid: Electrochemical, Weight Loss and DFT Simulations Studies

被引：0

作者：

Zouitini, A. ^{[1
]}

Kandri Rodi, Y. ^{[1
]}

Elmselem, H. ^{[3
]}

Ouazzani Chahdi, F. ^{[1
]}

Steli, H. ^{[4
]}

Ad, C. ^{[5
]}

Ouzidan, Y. ^{[1
]}

Essassi, E. M. ^{[2
]}

Chetouani, A. ^{[3
,6
]}

Hammouti, B. ^{[3
]}

机构：

[1] Univ Sidi Mohammed Ben Abdallah, Fac Sci & Technol, Lab Appl Organ Chem, Fes, Morocco

[2] Univ Mohammed 5, Fac Sci, URAC 21, Lab Chim Organ Heterocycl,Pole Competences Pharma, Av Ibn Battouta,BP 1014, Rabat, Morocco

[3] Fac Sci, LC2AME, BP 717, Oujda 60000, Morocco

[4] Univ Mohammed Premier, Fac Sci, Lab Mecan & Energet, Oujda, Morocco

[5] Laghouat Univ, Dept Proc Engn, Lab Proc Engn, POB 37G,Route Ghardaia, Laghouat 03000, Algeria

[6] Ctr Reg Metiers Educ & Format Oriental, Lab Chim Phys, Oujda, Morocco

来源：

MOROCCAN JOURNAL OF CHEMISTRY | 2018年 / 6卷 / 03期

关键词：

Quinoxaline derivative; Corrosion inhibitor; Steel; efficiency; EIS; DFT;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effect of quinoxaline derivative (AY20) against the corrosion of mild steel (MS) in 1 M acidic chloride (HCl) solution was investigated by chemical (weight loss - WL) and electrochemical (Tafel polarization and Electrochemical impedance spectroscopy) techniques. From all the four methods, it is inferred that the percentage of inhibition efficiency increases with increasing the inhibitor concentration from 10(-3)M to 10(-6)M. The adsorption behavior of inhibitor obeyed through Langmuir isotherm model. EIS technique exhibits one capacitive loop indicating that, the corrosion reaction is controlled by charge transfer process. Tafel polarization studies revealed that the investigated inhibitor is mixed type and the mode of adsorption is chemical in nature. Theoretical quantum chemical calculations were performed to confirm the ability of (AY20) to adsorb onto mild steel surface. The results obtained from different techniques are in good agreement.

引用

页码：391 / 403

页数：13

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