Abstract
Corrosion inhibition is essential for preserving metallic materials in various industrial applications. This study aims to assess the inhibition performance of Urginea maritima essential oil (HEUM) in mitigating copper corrosion within a 0.5 M sulfuric acid environment. The experimental investigation examined the inhibition properties of the essential oil using electrochemical impedance spectroscopy (EIS), potentiodynamic polarization studies (PDP) and surface analysis by scanning electron microscopy (SEM). In addition, theoretical studies have been carried out using density functional theory (DFT) to further elucidate corrosion inhibition mechanisms. The findings from both experimental and theoretical analyses suggest a notable reduction in corrosion rates with the essential oil, highlighting its promising efficacy as an inhibitor, and the inhibitory effect of HEUM essential oil can be attributed to a synergistic effect between its various components. Furthermore, thermal stability studies demonstrate sustained inhibitory action over a range of temperatures. These results demonstrate the high potential of HEUM as a natural and eco-friendly corrosion inhibitor, warranting further exploration of practical applications in corrosion control strategies.
Published Version
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