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Electrochemical Study on the Inhibition Effect of Phenanthroline and Its Cobalt Complex as Corrosion Inhibitors for Mild Steel
Liu, Xia; Okafor, Peter C.; Jiang, Bin; Hu, Hongxiang; Zheng, Yugui; laura-lx@163.com; ygzheng@imr.ac.cn
2015
Source PublicationJOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN1059-9495
Volume24Issue:9Pages:3599-3606
AbstractThe corrosion inhibition effect of phenanthroline (Phen) and its cobalt complex (CoPhen) on the corrosion of carbon steel in sulphuric acid solutions was studied using potentiodynamic polarization and electrochemical impedance spectroscopy techniques at 20, 30, and 40 A degrees C. Scanning electron microscopy techniques were used to characterize the mild steel surface. The results indicate that the compounds inhibit the corrosion of mild steel in H2SO4 solutions through a predominant physical adsorption following the Langmuir adsorption isotherm. Polarization curves suggest that the complex and ligand are mixed-type inhibitors. The efficiency of the inhibitors is concentration- and temperature-dependent and follows the trend CoPhen > Phen.
description.department[liu, xia] shenyang univ chem technol, dept appl chem, shenyang 110142, peoples r china ; [okafor, peter c.] univ calabar, dept pure & appl chem, corros & electrochem res grp, calabar, nigeria ; [jiang, bin ; hu, hongxiang ; zheng, yugui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china
KeywordAdsorption Cobalt Complex Corrosion Inhibition Mild Steel Phenanthroline Sulphuric Acid
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74814
Collection中国科学院金属研究所
Corresponding Authorlaura-lx@163.com; ygzheng@imr.ac.cn
Recommended Citation
GB/T 7714
Liu, Xia,Okafor, Peter C.,Jiang, Bin,et al. Electrochemical Study on the Inhibition Effect of Phenanthroline and Its Cobalt Complex as Corrosion Inhibitors for Mild Steel[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2015,24(9):3599-3606.
APA Liu, Xia.,Okafor, Peter C..,Jiang, Bin.,Hu, Hongxiang.,Zheng, Yugui.,...&ygzheng@imr.ac.cn.(2015).Electrochemical Study on the Inhibition Effect of Phenanthroline and Its Cobalt Complex as Corrosion Inhibitors for Mild Steel.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,24(9),3599-3606.
MLA Liu, Xia,et al."Electrochemical Study on the Inhibition Effect of Phenanthroline and Its Cobalt Complex as Corrosion Inhibitors for Mild Steel".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 24.9(2015):3599-3606.
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