Origanum compactum essential oil as a green inhibitor for mild steel in 1 M hydrochloric acid solution: Experimental and Monte Carlo simulation studies
| Autor: | A. Ramzi, Belkheir Hammouti, J. Lazrak, F. El-Hajjaji, N. Arrousse, Abdellah Farah, El Hassan El Assiri, Z. Rais, Mustapha Taleb |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Chemistry Hydrochloric acid 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Corrosion law.invention Metal chemistry.chemical_compound Adsorption Physisorption law visual_art 0103 physical sciences visual_art.visual_art_medium Carvacrol 0210 nano-technology Thymol Essential oil Nuclear chemistry |
| Zdroj: | Materials Today: Proceedings. 45:7486-7493 |
| ISSN: | 2214-7853 |
| Popis: | The chemical composition of origanum compactum essential oil (OCEO) was performed by gas-chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). The essential oil was predominated by thymol (28.36%), carvacrol (25.44%), γ-terpinene (18.39%) and p-Cymene (11.21%). The corrosion-resistance ability of mild steel in hydrochloric acid solution using OCEO was tested by means of mass loss measurements, electrochemical and Monte Carlo simulations (MCS). The experimental results indicated that OCEO acted as an efficient inhibitor against the mild steel corrosion in 1 M HCl, and its inhibition efficiency increased with increasing concentration of the essential oil to attain 90% at 1 g.L−1. The adsorption of this essential oil on a mild steel surface follows Temkin’s adsorption isotherm and involved a physisorption mode. While, polarization studies showed that origanum compactum essential oil behaves as a mixed type inhibitor. Furthermore, MCS were carried out to assert the experimental results by exploring the configurational adsorption behavior of OCEO on the metal surface. |
| Databáze: | OpenAIRE |
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