Poly-levodopa as an Eco-friendly Corrosion Inhibitor for Q235 Steel

被引：3
作者：
Yang, Feng [1 ]
Wei, Jiayu [1 ,2 ]
Qiu, Shihui [2 ]
Liu, Chengbao [2 ]
Cheng, Li [2 ]
Zhao, Haichao [2 ]
机构：
[1] Shenyang Univ Chem Technol, Sch Mat Sci & Engn, Shenyang 110142, Peoples R China
[2] Chinese Acad Sci, Key Lab Marine Mat & Related Technol, Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2020年 / 15卷 / 12期
关键词：
Poly-(L-DOPA); Q235; Steel; Corrosion inhibition; Hydrochloric acid solution; MILD-STEEL; COPPER CORROSION; CARBON-STEEL; HCL SOLUTION; MONTELUKAST SODIUM; ACIDIC MEDIUM; DERIVATIVES; EXTRACT; ADSORPTION; PERFORMANCE;
D O I：
10.20964/2020.12.72
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The corrosion inhibition effect of polylevodopa (poly-(L-DOPA)) on Q235 carbon steel in 1 M HCl was studied owing to its low cytotoxicity and special structure. Electrochemical measurements show that the corrosion inhibition efficiency increases with the increase of poly-(L-DOPA) concentration and the immersion time. When the concentration of poly-(L-DOPA) is 300 mg/L, the corrosion inhibition efficiency can reach 97%. Confocal laser scanning microscopy (CLSM) and field emission scanning electron microscope (FESEM) proved that poly-(L-DOPA) has a good corrosion inhibition effect on Q235 carbon steel immersed in 1 M HCl. Poly-(L-DOPA) adsorbs on the surface of Q235 carbon steel to form a protective film, and followed the Langmuir adsorption isotherm.
引用
收藏
页码：12302 / 12317
页数：16
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