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.
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页数：16
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