Title of article :
Aqueous Extracts of Santolina Pectinata lag., Aerial Parts as Green Corrosion Inhibitor for Mild Steel in 1.0 M HCl
Author/Authors :
Manssouri, Mounir Moulay Ismail University of Meknes - Laboratory of Natural Substances & Synthesis and Molecular Dynamics - Faculty of Sciences and Techniques - BP 509 - 52000 - Errachidia - Morocco , Znini, Mohamed Moulay Ismail University of Meknes - Laboratory of Natural Substances & Synthesis and Molecular Dynamics - Faculty of Sciences and Techniques - BP 509 - 52000 - Errachidia - Morocco , Lakbaibi, Zouhair Moulay Ismail University of Meknes - Laboratory of Natural Substances & Synthesis and Molecular Dynamics - Faculty of Sciences and Techniques - BP 509 - 52000 - Errachidia - Morocco , El Ouadi, Yassir Laboratory of Analytical Chemistry, Materials, and Environment (LC2AME) - Faculty of Sciences - University of Mohammed Premier - B.P. 717 - 60000 Oujda - Morocco , Majidi, Lhou Moulay Ismail University of Meknes - Laboratory of Natural Substances & Synthesis and Molecular Dynamics - Faculty of Sciences and Techniques - BP 509 - 52000 - Errachidia - Morocco
Abstract :
The protective effect of the aqueous extracts of Santolina pectinata (Lag.) aerial parts (Odorized aqueous extract (AE1) and Deodorized aqueous extract (AE2)) on the corrosion of mild steel (MS) in 1M HCl solution were tested by the weight loss (WL) analysis, potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) methods. The inhibition efficiency (%IE) is highly raised with increasing of the dose of inhibitors and increased slightly for AE1 but decreased for AE2 with the rise of the temperature media (308-343K). The charge transfer process mainly controls the results of EIS measurements, PDP measurements showed that the studied inhibitors performs as a mixed-type inhibitor. Furthermore, the adsorption on the steel is made according to the Langmuir model of each inhibitor.
Keywords :
Santolina pectinata , Aqueous extracts , (Z)-heptadeca-10,16-dien-7-one , Mild steel , Corrosion inhibition
Journal title :
Analytical and Bioanalytical Electrochemistry
