Corrosion inhibition properties of iodide ionic liquids for API 5L X52 steel in acid medium

被引：79

作者：

Arellanes-Lozada, Paulina ^{[1
]}

Diaz-Jimenez, Victor ^{[1
]}

Hernandez-Cocoletzi, H. ^{[1
]}

Nava, Noel ^{[2
]}

Olivares-Xometl, Octavio ^{[1
]}

Likhanova, Natalya, V ^{[2
]}

机构：

[1] Benemerita Univ Autonoma Puebla, Fac Ingn Quim, Av San Claudio & 18 Sur,Ciudad Univ, Puebla 72570, Pue, Mexico

[2] Inst Mexicano Petr, Gerencia Mat & Desarrollo Prod Quim, Eje Cent Lazaro Cardenas 152, Ciudad De Mexico 07730, Mexico

来源：

CORROSION SCIENCE | 2020年 / 175卷

关键词：

Corrosion inhibitors; Ionic liquids; Sulfuric acidic; Surface analysis; Reynolds numbers; MILD-STEEL; SULFURIC-ACID; CARBON-STEEL; POTASSIUM-IODIDE; GREEN INHIBITORS; AQUEOUS EXTRACT; CO2; CORROSION; SCHIFF-BASES; IMIDAZOLIUM; ADSORPTION;

D O I：

10.1016/j.corsci.2020.108888

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A mechanism for describing the corrosion inhibition of API 5L X52 steel in 1 M H2SO4 employing two ionic liquids (ILs) with imidazolium-derived cations and iodide anion as corrosion inhibitors (CIs) at stationary and dynamic states is proposed. The adsorption process occurred firstly through the adsorption of iodide ions (I-) on the metal surface as a result of the coulombic force, which promoted the subsequent adsorption of the imida-zolium cation. The maximal inhibition efficiency (IE) values for the ILs ranged from 91 to 95 %. Likewise, the XPS, computed tomography, SEM and AFM results supported the obtained IEs.

引用

页数：16

共 84 条

[11]

Bennett B.M., 2015, Patent, Patent No. [WO 2015002988 A1, 2015002988]

[12] Synergistic effect of iodide ions on inhibitive performance of 2,5-bis(4-methoxyphenyl)-1,3,4-thiadiazole during corrosion of mild steel in 0.5 M sulfuric acid solution [J].