Abstract
The corrosion inhibition characteristics of aqueous extract of seeds of Coriandrum sativum L. (CSE) have been studied as an eco-friendly green inhibitor for corrosion control of aluminium in 1.0M phosphoric acid solution using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The effects of inhibitor concentration and temperature on the inhibition action were investigated. The adsorption of CSE on metal surface obeyed Langmuir adsorption isotherm. Polarization measurements showed that the CSE acted as mixed inhibitor in 0.5M and 2.0M phosphoric acid solution and the inhibitor molecules followed physical adsorption on the surface of aluminium. The surface morphology of aluminium, in the absence and presence of CSE in 1.0M phosphoric acid solution, was studied using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). Results obtained from Tafel extrapolation and A.C electrochemical impedance spectroscopy (EIS) techniques were in good agreement.
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 callDisclaimer: 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.
