The effect of ionic liquids with imidazolium and pyridinium cations on the corrosion inhibition of mild steel in acidic environment

被引：260

作者：

Likhanova, Natalya V. ^{[3
]}

Dominguez-Aguilar, Marco A. ^{[3
]}

Olivares-Xometl, Octavio ^{[1
]}

Nava-Entzana, Noel ^{[3
]}

Arce, Elsa ^{[2
]}

Dorantes, Hector ^{[2
]}

机构：

[1] Benemerita Univ Autonoma Puebla, Fac Ingn Quim, Mexico City 72570, DF, Mexico

[2] Inst Politecn Nacl, ESIQIE, Dept Met & Mat, Mexico City 07300, DF, Mexico

[3] Inst Mexicano Petr, Direcc Invest & Posgrado, Mexico City 07730, DF, Mexico

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 06期

关键词：

Steel; Electrochemical calculation; Polarization; Acid corrosion; Acid inhibition; SCHIFF-BASE COMPOUNDS; LOW-CARBON STEEL; SULFURIC-ACID; HYDROCHLORIC-ACID; STAINLESS-STEEL; FORMATION WATER; HCL SOLUTION; SCAN RATE; ADSORPTION; MEDIA;

D O I：

10.1016/j.corsci.2010.02.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ionic liquids with chemical formula 1,3-dioctadecylimidazolium bromide and N-Octadecylpyridinium bromide were synthesized by conventional and microwave-assisted reactions, respectively. Ionic liquids tested as corrosion inhibitors after polarization curves displayed corrosion protection efficiency within 82-88% at 100 ppm for mild steel in a 1 M aqueous solution of sulfuric acid. Standard free energy indicated that corrosion inhibition occurred by a chemical adsorption process. Surface analysis (SEM, EDX) completed by XRD and Mossbauer spectroscopy indicated the presence of carbon species pertaining to inhibitor and corrosion products, which was rationalized in an inhibition mechanism. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：2088 / 2097

页数：10

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