Dysphania ambrosioides Essential Oil: An Eco-friendly Inhibitor for Mild Steel Corrosion in Hydrochloric and Sulfuric Acid Medium

The medicinal plant products have been found to be active and eco-friendly anticorrosion agents. Corrosion inhibition of essential oil of Dysphania ambrosioides ( DAEO ) were investigated on mild steel C38 in 0.5 M H 2 SO 4 and 1 M HCl solutions at different concentrations effect and different tempe...

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Bibliographic Details
Published in:Journal of bio- and tribo-corrosion 2021-12, Vol.7 (4), Article 150
Main Authors: Mirinioui, Amine, El Attari, Hassan, Fdil, Rabiaa, Zefzoufi, Manal, Jorio, Souad
Format: Article
Language:English
Subjects:
Adsorption
Biomaterials
Charge transfer
Chemistry and Materials Science
Corrosion
Corrosion and Coatings
Corrosion inhibitors
Corrosion prevention
Corrosion products
Density functional theory
Dysphania ambrosioides
Electrochemical impedance spectroscopy
Electronic structure
Enthalpy
Entropy
Essential oils
Free energy
Herbal medicine
Low carbon steels
Materials Science
Medicinal plants
Oils & fats
Parameters
Quantum chemistry
Solid Mechanics
Spectroscopy
Steel
Sulfuric acid
Tribology
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Summary:The medicinal plant products have been found to be active and eco-friendly anticorrosion agents. Corrosion inhibition of essential oil of Dysphania ambrosioides ( DAEO ) were investigated on mild steel C38 in 0.5 M H 2 SO 4 and 1 M HCl solutions at different concentrations effect and different temperatures was evaluated using the weight-loss method and electrochemical measurements. The results indicated a maximum inhibition efficiency of 90% in 1 M HCl and 91% in 0.5 M H 2 SO 4 which was reached using 4 g/L of DAEO at 298 K. The results obtained by electrochemical impedance spectroscopy show that the inhibitory action of this extract is based on the increase of the charge transfer resistance and the decrease of the double layer capacity. In addition, thermodynamic parameters, such as standard enthalpy of adsorption (Δ H° ads ), standard free energy adsorption rate (Δ G° ads ), and standard entropy of adsorption (Δ S° ads ) were used to elucidate DAEO inhibitory action. In particular, density-functional theory (DFT) based methods, very suitable to study the electronic structure of mild steel and the main DAEO products. The quantum chemical parameters were measured and discussed.
ISSN:2198-4220
2198-4239
DOI:10.1007/s40735-021-00584-7