Influence of biomacromolecule DNA corrosion inhibitor on carbon steel

被引：141
|
作者：
Hu, Ke [1 ]
Zhuang, Jia [1 ]
Ding, Jiating [2 ]
Ma, Zhu [1 ]
Wang, Fang [1 ]
Zeng, Xianguang [3 ]
机构：
[1] Southwest Petr Univ, Sch Mat Sci & Engn, Chengdu 610500, Sichuan, Peoples R China
[2] Guangxi Univ, Coll Phys & Technol Engn, Nanning 530004, Peoples R China
[3] Mat Corros & Protect Key Lab Sichuan Prov, Zigong 643000, Peoples R China
来源：
CORROSION SCIENCE | 2017年 / 125卷
关键词：
DNA; Corrosion inhibitor; Chemisorption; Quantum chemical calculations; MILD-STEEL; IMIDAZOLINE DERIVATIVES; THEORETICAL EVALUATION; BAND-STRUCTURE; AMINO-ACIDS; M HCL; SURFACE; IRON; XPS;
D O I：
10.1016/j.corsci.2017.06.004
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The biological macromolecule DNA was used as green corrosion inhibitor to protect X80 carbon steel against 1 M HCl solution, and the corrosion behavior was systematically investigated by weight loss, electrochemical measurements, FTIR, and quantum chemistry calculation et al. The results showed that the maximum inhibition efficiency of compound DNA reached 91.9%. It was found that the chemisorption of DNA inhibitor on carbon steel surface resulted from single-molecular-layer self-assembly. The theoretical calculation verified the relationship between the DNA molecular structure and the corrosion inhibition efficiency. The results further demonstrated that the DNA was a promising environment-friend inhibitor with effective inhibition efficiency.
引用
收藏
页码：68 / 76
页数：9
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