Study of the Inhibition Mechanism of Imidazolines by Electrochemical Impedance Spectroscopy

G. Gusmano; P. Labella; G. Montesperelli

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Study of the Inhibition Mechanism of Imidazolines by Electrochemical Impedance Spectroscopy

机译：Study of the Inhibition Mechanism of Imidazolines by Electrochemical Impedance Spectroscopy

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In this paper, the results of evaluating the activity of imidazoline-based corrosion inhibitors by means of electrochemical impedance spectroscopy (EIS) and other traditional electrochemical methods are reported. Tests were carried out on AISI 1040 (UNS G10400) mild steel specimens immersed in solution simulating the composition of an aqueous phase during oil production and transportation: high salinity, presence of carbon dioxide (CO_2), anaerobic environment, 40 deg C temperature. Two different inhibitor formulations were tested in the presence of different salting agents (acetic acid CH_3COOH and thioglycolic acid HSCH_2COOH or TGA). EIS data were analyzed using equivalent circuits. The electrochemical tests indicated evidence of different mechanisms and activity depending on inhibitor formulation.

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来源
《Corrosion: The Journal of Science and Engineering》 |2006年第7期|576-583|共8页
作者
G. Gusmano; P. Labella; G. Montesperelli;
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作者单位

Dipartimento di Scienze e Tecnologie Chimiche, Universita di Roma 'Tor Vergata," Via della Ricerca Scientifica, 00133 Rome, Italy;

ostmaster.co.uk;

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原文格式 PDF
正文语种英语
中图分类金属腐蚀与保护、金属表面处理;
关键词
carbon dioxide corrosion; carbon steel; corrosion inhibitors; electrochemical impedance spectroscopy;

Study of the Inhibition Mechanism of Imidazolines by Electrochemical Impedance Spectroscopy

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