Muralidharan, S. and Chandrasekaran, R. and Iyer, S.V.K. (2000) Effect of piperidones on hydrogen permeation and corrosion inhibition of mild steel in acidic solutions. Proceedings of the Indiana Academy of Science, 112 (2). pp. 127-136.

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The influence of 3-methyl-2,6-diphenyl piperidin-4-one (MDPO) and 2- phenyl decahydroquinoline-4-one (PDQO) synthesised in the laboratory on hydrogen permeation and corrosion inhibition of mild steel in 1N H2SO4 has been studied using weight loss and various electrochemical AC and DC corrosion-monitoring techniques. Both the compounds inhibit the corrosion of mild steel in H2SO4. Potentiodynamic polarisation studies clearly reveal that they behave predominantly as cathodic inhibitors. The extent of decrease in hydrogen permeation current through steel surfaces has been studied by the hydrogen electropermeation technique. Double layer capacitance (Cdl) and charge transfer resistance (Rt) values are derived from Nyquist plots obtained from AC impedance studies. The adsorption of these compounds on mild steel surfaces from H2SO4 obeys Temkin’s adsorption isotherm.

Item Type: Article
Uncontrolled Keywords: Corrosion inhibition; piperidones; hydrogen permeation; metal embrittlement; impedance measurements
Subjects: Corrosion Science and Engineering
Depositing User: ttbdar CECRI
Date Deposited: 25 Mar 2012 16:45
Last Modified: 25 Mar 2012 16:45

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