Ipomoea batatas leaves extract as a green corrosion inhibitor for Q235 steel in HCl solution

被引：5
|
作者：
Zeng, Wenguang [1 ,2 ]
Xu, Yanyan [1 ,2 ]
Ge, Pengli [1 ,2 ]
Wenw En Xiao [1 ,2 ]
Liu, Qingshan [1 ,2 ]
Gao, Zhengyuan [3 ]
Yan, Yongbo [4 ]
机构：
[1] SINOPEC Northwest Co China Petr & Chem Corp, Urumqi 830011, Peoples R China
[2] SINOPEC, Key Lab Enhanced Oil Recovery Carbonate Fractured, Urumqi 830011, Peoples R China
[3] Chongqing Jiaotong Univ, Sch Mechatron & Vehicle Engn, Chongqing 400074, Peoples R China
[4] Southwest Petr Univ, Sch Oil & Nat Gas Engn, Chengdu 610500, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2021年 / 16卷 / 10期
关键词：
Corrosion inhibitor; Extract; DFT; Langmuir; Molecular dynamics simulation; MILD-STEEL; CARBON-STEEL; IONIC LIQUIDS; ANTICORROSIVE MECHANISM; MOLECULAR-DYNAMICS; MONTE-CARLO; COPPER; DERIVATIVES; ADSORPTION; DFT;
D O I：
10.20964/2021.10.40
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this study, Ipomoea batatas leaves extract (IBLE) was prepared to control Q235 steel corrosion in 1 M HCl solution firstly. The adsorption and corrosion inhibition properties were examined by weight loss, surface topography and electrochemical methods, as well as theoretical simulations. Experimental results reveal that IBLE is a high efficiency mixed-type inhibitor with optimal performance of 96.4% at 200 mg/L. This contributes to the adsorption of IBLE onto steel samples, which involves both physisorption and chemisorption, consequently forming a strong protective film between steel and acid solution. In addition, molecular simulation results further confirm that IBLE can be effectively adsorbed onto Fe(110) substrate. Therefore, we developed a novel eco-friendly, efficient corrosion inhibitor for steel in HCl solution.
引用
收藏
页码：1 / 15
页数：15
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