Inhibition Mechanism of Some Vinylalkylimidazolium-Based Polymeric Ionic Liquids against Acid Corrosion of API 5L X60 Steel: Electrochemical and Surface Studies

被引：14
|
作者：
Gomez-Sanchez, Giselle [1 ]
Olivares-Xometl, Octavio [1 ]
Likhanova, Natalya, V [2 ]
Arellanes-Lozada, Paulina [1 ]
Lijanova, Irina, V [3 ]
Diaz-Jimenez, Victor [1 ]
Guzman-Lucero, Diego [2 ]
Arriola-Morales, Janette [1 ]
机构：
[1] Benemerita Univ Autonoma Puebla, Fac Ingn Quim, Puebla 72570, Mexico
[2] Inst Mexicano Petr, Gerencia Mat & Desarrollo Prod Quim, Ciudad De Mexico 07730, Cdmx, Mexico
[3] Inst Politecn Nacl, CIITEC, Cerrada Cecati S-N, Ciudad De Mexico 02250, Cdmx, Mexico
来源：
ACS OMEGA | 2022年 / 7卷 / 42期
关键词：
MILD-STEEL; CARBON-STEEL; SULFURIC-ACID; GREEN INHIBITORS; SCHIFF-BASE; ADSORPTION; H2SO4; POLYACRYLAMIDE; RESISTANCE; BEHAVIOR;
D O I：
10.1021/acsomega.2c04787
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A corrosion inhibition mechanism of API 5L X60 steel exposed to 1.0 M H2SO4 was proposed from the evaluation of three vinylalkylimidazolium poly(ionic liquids) (PILs), employing electrochemical and surface analysis techniques. The synthesized PILs were classified as mixed-type inhibitors whose surface adsorption was promoted mainly by bromide and imidazolate ions, which along with vinylimidazolium cations exerted a resistive effect driven by a charge transfer process by means of a protective PIL film with maximal efficiency of 85% at 175 ppm; the steel surface displayed less surface damage due to the formation of metal-PIL complex compounds.
引用
收藏
页码：37807 / 37824
页数：18
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