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

被引：127
作者：
Asefi, Dourna [2 ]
Arami, Mokhtar [1 ]
Mahmoodi, Niyaz Mohammad [3 ]
机构：
[1] Amirkabir Univ Technol, Dept Text Engn, Tehran, Iran
[2] Azad Univ, S Branch Tehran, Dept Polymer Engn, Tehran, Iran
[3] Inst Color Sci & Technol, Dept Environm Res, Tehran, Iran
来源：
CORROSION SCIENCE | 2010年 / 52卷 / 03期
关键词：
Acid solutions; Steel; Electrochemical calculation; Weight loss; Acid corrosion; COLD-ROLLED STEEL; M SULFURIC-ACID; 0.5 M H2SO4; MILD-STEEL; IODIDE-IONS; SYNERGISTIC INHIBITION; METAL-CATIONS; CHLORIDE-ION; ADSORPTION; IRON;
D O I：
10.1016/j.corsci.2009.10.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, the corrosion inhibition of cationic gemini surfactant, 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 increases by increasing surfactant concentration. Synergistic effect between surfactant and salts was studied. The inhibition efficiency increases by increasing salt concentration. This composite inhibitor containing gemini surfactant and halide was efficient and low-cost for steel corrosion inhibition in HCl. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：794 / 800
页数：7
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