Corrosion inhibition and adsorption behavior of 2-((dehydroabietylamine) methyl)-6-methoxyphenol on mild steel surface in seawater

被引：43

作者：

Liu, Bao-Yu ^{[1
]}

Liu, Zheng ^{[1
]}

Han, Guo-Cheng ^{[2
]}

Li, Yang-Hong ^{[3
,4
]}

机构：

[1] Guilin Univ Technol, Coll Chem & Biol Engn, Guilin 541004, Peoples R China

[2] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[3] Guangxi Key Lab Environm Engn Protect & Assessmen, Guilin 541004, Peoples R China

[4] Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541004, Peoples R China

来源：

THIN SOLID FILMS | 2011年 / 519卷 / 22期

关键词：

Corrosion inhibitor; Mild steel; Dehydroabietylamine; Seawater; SCHIFF-BASE COMPOUNDS; MOLECULAR-DYNAMICS; HYDROCHLORIC-ACID; CARBON-STEEL; BENZOTRIAZOLE DERIVATIVES; IMPEDANCE SPECTROSCOPY; ORGANIC-COMPOUNDS; SULFURIC-ACID; IRON; COPPER;

D O I：

10.1016/j.tsf.2011.06.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The inhibition effect of a Dehydroabietylamine Schiff base derivative, namely 2-((dehydroabietylamine) methyl)-6-methoxyphenol (DMP) against mild steel corrosion in seawater was evaluated using weight loss and electrochemical techniques (potentiodynamic polarization and electrochemical impedance). The experimental results showed that DMP is a good corrosion inhibitor and the inhibition efficiency increased with the increase of DMP concentration, while the adsorption followed the Langmuir isotherm. X-ray photoelectron spectroscopy, scanning electron microscopy, theoretical calculation of electronic density, molecular electrostatic potential and molecular dynamics were carried out to establish mechanism of corrosion inhibition for mild steel with DMP in seawater medium. The inhibition action of the compound was assumed to occur via adsorption on the steel surface through the active centers in the molecule. The corrosion inhibition is due to the formation of a chemisorbed film on the steel surface. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：7836 / 7844

页数：9

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