Abstract
A new cobalt(III) Schiff base omplex (SBCC), [Co(L)2]Cl (where L = N-(2-(2-hydroxyethylamino)ethyl) 5-methoxysalicylideneimine), was synthesized and structurally characterized by X-ray single crystal structure analysis. Intramolecular C-H⋯O hydrogen bonds stack molecules on 020 directions and intramolecular hydrogen bonding with the chloride ions is the result of stacking the molecules on c direction in unit cell and 011 crystallographic sheets. More available surface area collect from 020 sheets and these surfaces are useful for making a blocking layer of complex with adsorption on the surface of steel. Corrosion inhibition and adsorption behavior of mild steel in 0.5 M HCl by SBCC were investigated using electrochemical techniques. It was found that inhibition efficiency increased with SBCC concentration. The inhibition efficiency is 84% for 400 ppm concentration of the complex. Corrosion inhibition was afforded by adsorption of SBCC onto the metal following El-Awady kinetic-thermodynamic adsorption isotherm model. The results obtained show that SBCC acts as a mixed-type inhibitor and it could serve as an effective corrosion inhibitor of mild steel in aqueous solution.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Protection of Metals and Physical Chemistry of Surfaces
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
