期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN:2347-6710
电子版ISSN:2319-8753
出版年度:2014
卷号:3
期号:4
页码:11455
出版社:S&S Publications
摘要:Glycine has the ability to control corrosion of various metals such as carbon steel, zinc, tin and copper. Itbehaves as an inhibitor in acid medium, neutral medium and in desecrated carbonated solution. Various techniques likeweight loss method, polarization study and AC impedence spectra have been used to evaluate the corrosion inhibitionefficiency of glycine. The protective film has been analysed by IR spectroscopy, atomic force microscopy, scanningelectron microscopy and auger electron spectroscopy. Adsorption of glycine on metal surface obeys Langmuir, Flory-Huggins or Temkin isotherm, depending on nature of metal and corrosive environment. Polarization study reveals thatglycine can function as anodic or cathodic or mixed type of inhibitor depending on nature of metal and corrosiveenvironment.
关键词:Corrosion inhibition; glycine; amino acids; metals and alloys