Aluminum corrosion prevention in 1.0 M HCl solution by cystosiera myrica extract: An experimental and biological study

Potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS), tests, mass loss (ML) and Hydrogen evolutions (HE) methods were used to examine the effects of the newly plant extracted compound (Cystosiera myrica). All these quantities exhibited that the effectiveness of inhibition increase with a rise in inhibitor concentration and with a rise in temperature. Polarization curves displayed that the inhibitor studied was an inhibitor of a mixed kind. Langmuir isotherm was attained for the adsorption of the inhibitor on the Aluminum surface. Thermodynamic parameters were determine and deduced such as activation enthalpy (delta H*), activation entropy (delta S*), adsorption equilibrium constant (K-ads) and free adsorption energy (G(ads)(o)) have been measured. UV/visible spectral, Attenuated Total Reflection Infra-Red (ATR-IR) and Atomic Force Microscopy (AFM) tested have observed the effect of this inhibitor on Al surface morphology. All other data approaches were compatible and in line with each other.

Automated summary

This study examined the effects of a newly plant extracted compound on the aluminum surface using various experimental methods. The results showed that the effectiveness of inhibition increased with higher inhibitor concentration and temperature. The study also determined the adsorption characteristics and thermodynamic parameters of the inhibitor. Additionally, the effect of the inhibitor on the aluminum surface morphology was observed using analytical instruments.