Electrochemical effect of cationic gemini surfactant and halide salts on corrosion Inhibition of low carbon steel in acid medium

被引：2
|
作者：
Asefi, Dourna [1 ]
Arami, Mokhtar [2 ]
Mahmoodi, Niyaz Mohammad [3 ]
机构：
[1] Azad Univ, Dept Polymer Engn, S Branch Tehran, Tehran, Iran
[2] Amirkabir Univ Technol, Text Engn Dept, Tehran, Iran
[3] Inst Color Sci & Technol, Dept Environm Res, Tehran, Iran
来源：
CORROSION POSTERS (GENERAL) - 218TH ECS MEETING | 2011年 / 33卷 / 30期
关键词：
COLD-ROLLED STEEL; M SULFURIC-ACID; 0.5 M H2SO4; MILD-STEEL; IODIDE-IONS; SYNERGISTIC INHIBITION; IRON CORROSION; METAL-CATIONS; CHLORIDE-ION; ADSORPTION;
D O I：
10.1149/1.3566083
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this paper, the corrosion inhibition of cationic gemini surfactant 1,4-butan-bis-(dimethyl dodecyl ammonium bromide), in the absence and presence of halide salts (NaCl, NaBr and NaI) on steel in HCl was investigated at 20 +/- 1 degrees C. The effects of pH, immersion time and salt concentration on the corrosion inhibition of steel were studied using weight loss, open circuit potential and electrochemical impedance spectroscopy. Inhibition efficiency was found to increase with increasing surfactant concentration. Synergistic effects between the surfactant and the salts were studied. The inhibition efficiency was found to increase with increasing salt concentration. This composite inhibitor containing gemini surfactant and halide was efficient and low-cost for steel corrosion inhibition in HCl.
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页码：1 / 16
页数：16
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