Eco friendly green inhibitor Gum Arabic (GA) for the corrosion control of mild steel in hydrochloric acid medium

被引：167

作者：

Azzaoui, Khalil ^{[1
]}

Mejdoubi, Emiloud ^{[1
]}

Jodeh, Shehdeh ^{[2
]}

Lamhamdi, Abdellatif ^{[1
,3
]}

Rodriguez-Castellon, Enrique ^{[4
]}

Algarra, Manuel ^{[4
]}

Zarrouk, Abdelkader ^{[5
]}

Errich, Abderrazak ^{[6
]}

Salghi, Rachid ^{[7
]}

Lgaz, Hassane ^{[7
,8
]}

机构：

[1] Mohamed 1st Univ, Fac Sci, Dept Chem, Lab Mineral Solid & Analyt Chem LMSAC, POB 717, Oujda 60000, Morocco

[2] An Najah Natl Univ, Dept Chem, POB 7, Nablus, Palestine

[3] Mohamed 1st Univ, Natl Sch Appl Sci Hoceima, POB 717, Oujda 60000, Morocco

[4] Univ Malaga, Fac Sci, Dept Inorgan Chem, Malaga, Spain

[5] Univ Mohammed Premier, Fac Sci, Lab Appl Chem & Environm LCAE URAC18, BP 717, M-60000 Oujda, Morocco

[6] Univ Mohammed 5, Rabat Agdal Fac Sci, Dept Chem, Lab Infrared Spect, Rabat, Morocco

[7] Ibn Zohr Univ, Lab Appl Chem & Environm, ENSA, POB 1136, Agadir 80000, Morocco

[8] Univ Ibn Tofail, Fac Sci, Lab Separat Proc, Kenitra, Morocco

来源：

CORROSION SCIENCE | 2017年 / 129卷

关键词：

Mild steel; Gum Arabic; Corrosion inhibition; Electrochemical; DFT; M HCL SOLUTION; QUANTUM-CHEMICAL CALCULATIONS; CONSTANT-PHASE-ELEMENT; SCHIFF-BASE MOLECULES; CARBON-STEEL; THEORETICAL APPROACH; BENZIMIDAZOLE DERIVATIVES; PYRIMIDINE-DERIVATIVES; ELECTRONIC-STRUCTURE; MD SIMULATION;

D O I：

10.1016/j.corsci.2017.09.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gum Acacia (GA) was evaluated for steel inhibition in acidic medium. Weight loss, EIS, and by polarization potentiodynamic curves were used to test it. GA showed a high efficiency in protecting steel from acid, and found as dependent on its concentration (1.0 g/L). AFM allowed comparing the morphology of steel with GA, which was complemented with XPS spectroscopy, which confirmed the complete adsorption of GA by evaluating the surface film composition. Polarization resistance increases when GA concentration does, based on EIS characterization, indicating the formation of a protective layer whereas PDP results showed that, GA behaves as a mixed-type inhibitor.

引用

页码：70 / 81

页数：12

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