Abstract
Current research efforts now focus on the development of novel, cheaper, nontoxic, highly efficient and eco-friendly corrosion inhibitors as alternatives to different inorganic and organic compounds. In this context, orange zest essential oil (OZEO) was investigated as corrosion inhibitor for mild steel in 1 M HCl medium utilizing different techniques such as gas chromatography–mass spectrometry (GC–MS), mass loss, electrochemical and scanning electron microscope (SEM) associated with energy-dispersive X-ray spectroscopy (EDX). The obtained results indicated that this OZEO acted as an efficient corrosion inhibitor and the inhibition efficiency reached up to 75.64% at 2.5 g L−1 of OZEO. The potentiodynamic curves revealed that OZEO acted as mixed inhibitor with a predominantly anodic action, facilitating the formation of an adsorbed film over the mild steel surface. The adsorption data is fitted to Langmuir, Flory–Huggins, Freundlich, El-Awady, Temkin, Frumkin, Langmuir–Freundlich and Dubinin–Radushkevich isotherms models and involve chemisorption mechanism. SEM examination and EDX analysis of the mild steel surface confirmed the existence of a protective adsorbed film.
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 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.
