Adsorption and Corrosion Inhibition Performance of 2-(p-bromobenzylthio)-1H-benzimidazole for Q235 Steel in HCl Solution

被引：9
作者：
Lai, Chuan [1 ,2 ]
Yang, Hongxia [2 ]
Guo, Xiaogang [3 ]
Su, Xiulan [1 ]
Zhou, Lvshan [1 ]
Zhang, Lei [1 ]
Xie, Bin [2 ]
机构：
[1] Sichuan Univ Arts & Sci, Sch Chem & Chem Engn, Dazhou 635000, Peoples R China
[2] Sichuan Univ Sci & Engn, Inst Funct Mat, Sch Chem & Environm Engn, Mat Corros & Protect Key Lab Sichuan Prov, Zigong 643000, Peoples R China
[3] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400044, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2016年 / 11卷 / 12期
关键词：
Adsorption; Corrosion inhibitor; Q235; steel; 2-mercaptobenzimidazole; MILD-STEEL; ACID SOLUTION; CARBON-STEEL; 2-MERCAPTOBENZIMIDAZOLE; RESISTANCE; ALKALOIDS;
D O I：
10.20964/2016.12.78
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The new organic corrosion inhibitor of 2-(p-bromobenzylthio)-1H-benzimidazole (Br-BBD) was synthesized in this work. After prepared, the adsorption and corrosion inhibition performance of Br BBD for Q235 steel in HCl solution were studied using EIS, SEM, polarization measurement and WLM (weight loss measurement). The results exhibit that Br-BBD acts as an excellent corrosion inhibitor for Q235 steel in HCl solution, and the inhibition efficiency can reach up to 98.07% when the Br-BBD concentration is 50 mg L-1 in 1.0 M HC1 at 25 degrees C. In addition, the adsorption of the mixed-type inhibitor of Br-BBD on Q235 steel surface obey Langmuir adsorption isotherm, which is governed by spontaneous chemisorption mechanism.
引用
收藏
页码：10462 / 10472
页数：11
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