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Electrochemical study on the effect of bipyridine dicarboxylic acid and its cobalt complex on the corrosion behaviour of carbon steel in acidic medium
X.; Lu Liu, Y.; Jiang, B.
2015
Source PublicationJournal of Adhesion Science and Technology
ISSN0169-4243
Volume29Issue:6Pages:463-472
AbstractThe 2,2 '-bipyridine-3,3 '-dicarboxylic acid (bida) and its cobalt complex (Co-bida) were tested as corrosion inhibitors for N80 carbon steel in sulphuric acid solution by electrochemical polarization and electrochemical impedance spectroscopy method. The results indicate that the complex and ligand inhibit the corrosion of mild steel in H2SO4 solutions and the extent of inhibition increases with inhibitor concentration and decreases with temperature. The inhibition efficiency of the inhibitors follows the trend Co-bida>bida. A mixed-inhibition mechanism is proposed for the inhibitive effects of the compounds. The adsorption characteristics of the inhibitors were approximated by Temkin isotherm. Morphological study of the carbon steel electrode surface was undertaken by scanning electron microscope and the interfacial species formed on the surface in the presence of inhibitors analyzed by infrared spectroscopy.
description.department[liu, x. ; lu, y.] shenyang univ chem technol, dept appl chem, shenyang, peoples r china. [jiang, b.] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china. ; liu, x (reprint author), shenyang univ chem technol, dept appl chem, shenyang, peoples r china. ; laura-lx@163.com
Keyword2,2 '-bipyridine-3,3 '-dicarboxylic Acid Complex Sulphuric Acid Corrosion Inhibition Inhibitor Adsorption Processes Mild-steel Sulfuric-acid Hcl Solution Derivatives Iron Chloride System
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73869
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
X.,Lu Liu, Y.,Jiang, B.. Electrochemical study on the effect of bipyridine dicarboxylic acid and its cobalt complex on the corrosion behaviour of carbon steel in acidic medium[J]. Journal of Adhesion Science and Technology,2015,29(6):463-472.
APA X.,Lu Liu, Y.,&Jiang, B..(2015).Electrochemical study on the effect of bipyridine dicarboxylic acid and its cobalt complex on the corrosion behaviour of carbon steel in acidic medium.Journal of Adhesion Science and Technology,29(6),463-472.
MLA X.,et al."Electrochemical study on the effect of bipyridine dicarboxylic acid and its cobalt complex on the corrosion behaviour of carbon steel in acidic medium".Journal of Adhesion Science and Technology 29.6(2015):463-472.
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