Plant derived cationic dye as an effective corrosion inhibitor for 7075 aluminum alloy in 3.5% NaCl solution

被引：75

作者：

Singh, Ambrish ^{[1
,2
]}

Lin, Yuanhua ^{[1
]}

Liu, Wanying ^{[1
]}

Yu, Shijie ^{[4
]}

Pan, Jie ^{[3
]}

Ren, Chengqiang ^{[4
]}

Deng Kuanhai ^{[3
]}

机构：

[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China

[2] Lovely Profess Univ, Sch Civil Engn, Dept Chem, LFTS, Phagwara 144402, Punjab, India

[3] Southwest Petr Univ, CNPC Key Lab Tubular Goods Engn, Chengdu 610500, Sichuan, Peoples R China

[4] Southwest Petr Univ, Sch Mat Sci & Engn, Chengdu 610500, Sichuan, Peoples R China

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2014年 / 20卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Aluminum alloy; SECM; SEM; Inhibition; EIS; SCANNING ELECTROCHEMICAL MICROSCOPY; MILD-STEEL CORROSION; HYDROCHLORIC-ACID; ANTICORROSIVE PROPERTIES; SCHIFF-BASES; HCL; EXTRACT; ADSORPTION; CHLORIDE; BEHAVIOR;

D O I：

10.1016/j.jiec.2014.01.033

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The inhibition of the corrosion of 7075 aluminum alloy in 3.5 wt.% NaCl solution by 5,6-dihydro-9,10-dimethoxybenzo[g]-1,3-benzodioxolo[5,6-a]quinolizinium (berberine) has been studied using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, scanning electrochemical microscopy (SECM) and scanning electron microscopy (SEM). Inhibition efficiency was found to increase with increasing concentration of berberine. The adsorption of the berberine on the 7075 aluminum alloy surface obeyed the Langmuir adsorption isotherm. The adsorbed film on 7075 aluminum alloy surface containing inhibitor was confirmed by the SEM, and SECM. The results obtained showed that the berberine could serve as an effective inhibitor of the corrosion of 7075 aluminum alloy in 3.5% NaCl. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：4276 / 4285

页数：10

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