Adsorption and performance of ammonium-based ionic liquids as corrosion inhibitors of steel

被引：119

作者：

Arellanes-Lozada, Paulina ^{[1
]}

Olivares-Xometl, Octavio ^{[1
]}

Likhanova, Natalya V. ^{[2
]}

Lijanova, Irina V. ^{[3
]}

Vargas-Garcia, Jorge R. ^{[4
]}

Hernandez-Ramirez, Raquel E. ^{[5
]}

机构：

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

[2] Inst Mexican Petr, Gerencia Ingn Recuperac Adic, Eje Cent Lazaro Cardenas 152, Ciudad De Mexico 07730, Mexico

[3] Inst Politecn Nacl, CIITEC, Cerrada Cecati S-N, Ciudad De Mexico 02250, Mexico

[4] Inst Politecn Nacl, Ctr Nanociencias & Micro & Nanotecnol, Unidad Profes Adolfo Lopez Mateos, Av Luis Enrique Erro S-N, Ciudad De Mexico 07738, Mexico

[5] Tecnol Estudios Super Coacalco, 16 Septiembre 54, Coacalco De Berriozabal 55700, Estado De Mexic, Mexico

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 265卷

关键词：

Corrosion inhibitor; Ammonium-based ionic liquids; Steel; Corrosion inhibition mechanism; CARBON-STEEL; MILD-STEEL; QUATERNARY AMMONIUM; GREEN INHIBITOR; ACIDIC-SOLUTION; SURFACE; BEHAVIOR; MEDIA; IRON; OIL;

D O I：

10.1016/j.molliq.2018.04.153

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Methyltrioctylammonium methyl sulfate (TMA) and trimethyltetradecylammonium methyl sulfate (TTA) were synthetized as novel quaternary-ammonium-derived ionic liquids (ILs) in order to be evaluated as corrosion inhibitors (CIs) of API-X52 steel in 1 M HCl. Electrochemical techniques were used to evaluate the anticorrosive effect, finding that TMA and TTA worked as mixed-type CIs and inhibited the corrosion process depending on the temperature, immersion time and IL concentration, being remarkably effective at 40 degrees C, which was attributed to the high thermal stability of the methyl sulfate anions. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and atomic force microscopy (AFM) were used to elicit the chemical composition and surface morphology of steel in the presence of CIs whose adsorption processes involved strong electrostatic interactions between the metal, chloride ions, methyl sulfate anions and quaternary ammonium cations in the ILs. The results allowed the development of a corrosion inhibition mechanism. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：151 / 163

页数：13

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