An improved corrosion resistance of steel in hydrochloric acid solution using Hibiscus sabdariffa leaf extract

摘要: The study used some sophisticated electrochemical techniques and surface analysis for corrosion research to unravel the inhibitive action of Hibiscus sabdariffa leaf extract on mild steel in 0.1 M HCl solution. results indicate that acts as a mixed-type inhibitor forms defensive layer enhance resistance, which accounts diminished rate reinforced polarization resistance. highest inhibition efficiency was documented at 1500 ppm using tests. Surface indicated severe observed exposed solution without addition, but less surfaces inhibited systems. Furthermore, an adsorbed its components were also identified evidently by employing attenuated total reflectance Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy. Molecular dynamic simulation investigated further understand ability extract. An agreement behaviors, observations, molecular simulations demonstrated good performance due formation protective via adsorption activities.