文章基本信息

标题：Etude microbiologique et identification des souches isolés à partir du poisson (Mugil cephalus) séché-pilé « Lekhlia » (Microbiological Study and identification of strains isolated from the fish (Mugil cephalus) dried-pounded « Lekhlia »),
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作者：Kassou O. ; Galai M. ; Ballakhmima R. A. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：4
页码：1147-1155
出版社：University of Mohammed Premier Oujda
摘要：The amino acid compounds have been tested as corrosion inhibitors for low carbon steel in a 200 ppm NaCl solution using potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS). Potentiodynamic polarization curves showed that these compounds act as cathodic-type inhibitors. Their inhibitio n efficiency (η) depends on the number of heteroatoms in their structure. This result was co nfirmed by the electrochemical impedance spectroscopy measurements. In addition, the impedance diagrams were composed of two capacitive loops badly separated. The first loop was attributed to the formation of a protecti ve layer while the second was attributed to the charge transfer resistance. Finally, it is proved that the inhibition performance of Guanine was indeed improved by immersion time and reached a maximum of 96 % at 4 h.
关键词：amino acids; Corrosion inhibition; NaCl; low carbon steel; heteroato m number; Electrochemical measurements.