Identification of Potential Green Inhibitors Extracted from Thymbra capitata (L.) Cav. for the Corrosion of Brass in 3% NaCl Solution: Experimental, SEM–EDX Analysis, DFT Computation and Monte Carlo Simulation Studies

被引：0

作者：

Chraka A. ^{[1
]}

Raissouni I. ^{[1
]}

Seddik N.B. ^{[1
]}

Khayar S. ^{[1
]}

Mansour A.I. ^{[2
]}

Tazi S. ^{[1
]}

Chaouket F. ^{[1
]}

Bouchta D. ^{[1
]}

机构：

[1] Materials and Interfacial Systems Laboratory, ERESI Team. Department of Chemistry, Faculty of Sciences, Abdelmalek Essaâdi University, Avenue de Sebta, Mhannech II, Tetouan

[2] Laboratory of Applied Organic Chemistry, Department of Chemistry, Faculty of Sciences, Abdelmalek Essaâdi University, Tetouan

来源：

Journal of Bio- and Tribo-Corrosion | 2020年 / 6卷 / 03期

关键词：

Brass; Corrosion; DFT; Essential oil; Hydrosol; Thymbra capitata (l.) cav;

D O I：

10.1007/s40735-020-00377-4

中图分类号：

学科分类号：

摘要：

The purpose of this study is to identify the green corrosion inhibitors of brass in a 3% NaCl solution. Potential corrosion inhibition compounds extracted from the essential oil (EO) and the hydrosol (HY) of Moroccan Thymbra capitata (L.) Cav. (Lamiaceae) were tested and characterized. Gas chromatography coupled with mass spectrometry (GC–MS) method was used to identify the chemical composition in EO and HY. The electrochemical analysis was conducted using potentiodynamic polarization curves and impedance spectroscopy (EIS) techniques. The results obtained show a high percentage of carvacrol for both EO (85.96%) and HY (98.04%). In addition, the corrosion rate of brass decreased with increasing concentrations of EO and HY in the presence of 3% NaCl. Unexpectedly, the maximum inhibition efficiency was recorded for HY (93.04%) then for EO (84.90%) in a 3% NaCl medium. The protective film adsorbed on the brass surface when using the two green extracts was analyzed using scanning electron microscope (SEM), coupled with energy-dispersive X-ray analysis (EDX). The surface morphology showed a good inhibition for HY compared to that of EO. Computational studies, using density function theory (DFT) and Monte Carlo (MC) simulations, confirmed the experimental results, this allowed us to understand that the high inhibition efficacy of HY is likely associated with the synergistic effect between carvacrol and eugenol despite this latter low percentage (0.50%) in our extract. This study also enabled us to suggest an inhibition mechanism of carvacrol and the synergistic effect between carvacrol and eugenol, which increase the corrosion inhibiting effect of HY. © 2020, Springer Nature Switzerland AG.

引用

共 66 条

[1] Cao N., Miao Y., Zhang D., Boukherroub R., Lin X., Ju H., Li H., Preparation of mussel-inspired perfluorinated polydopamine film on brass substrates: superhydrophobic and anti-corrosion application, Prog Org Coat, 125, pp. 109-118, (2018)
[2] Seddik N.B., Raissouni I., Draoui K., Aghzzaf A.A., Chraka A., Aznag B., Chaouket F., Bouchta D., Calcite, the main corrosion inhibitor contained in the raw clay (Rhassoul) of brass in 3% NaCl medium, Mediterr J Chem, 9, pp. 236-248, (2019)
[3] Seddik N.B., Raissouni I., Draoui K., Aghzzaf A.A., Chraka A., Aznag B., Chaouket F., Bouchta D., Anticorrosive performance of lanthanum ions intercalated Stevensite clay on brass in 3% NaCl medium, Mater Today Proc, 22, pp. 78-82, (2020)
[4] Chraka A., Raissouni I., Benseddik N., Khayar S., Mansour A.I., Belcadi H., Chaouket F., Bouchta D., Aging time effect of Ammi visnaga (L.) lam essential oil on the chemical composition and corrosion inhibition of brass in 3% NaCl medium. Experimental and theoretical studies, Mater Today Proc, 22, pp. 83-88, (2020)
[5] Loto R.T., Olowoyo O., Corrosion inhibition properties of the combined admixture of essential oil extracts on mild steel in the presence of SO<sub>4</sub> <sup>2−</sup> anions, S Afr J Chem Eng, 26, pp. 35-41, (2018)
[6] Alibakhshi E., Ramezanzadeh M., Bahlakeh G., Ramezanzadeh B., Mahdavian M., Motamedi M., Glycyrrhiza glabra leaves extract as a green corrosion inhibitor for mild steel in 1 M hydrochloric acid solution: experimental, molecular dynamics, Monte Carlo and quantum mechanics study, J Mol Liq, 255, pp. 185-198, (2018)
[7] Haddadi S.A., Alibakhshi E., Bahlakeh G., Ramezanzadeh B., Mahdavian M., A detailed atomic level computational and electrochemical exploration of the Juglans regia green fruit shell extract as a sustainable and highly efficient green corrosion inhibitor for mild steel in 3.5 wt% NaCl solution, J Mol Liq, 284, pp. 682-699, (2019)
[8] Alibakhshi E., Ramezanzadeh M., Haddadi S., Bahlakeh G., Ramezanzadeh B., Mahdavian M., Persian Liquorice extract as a highly efficient sustainable corrosion inhibitor for mild steel in sodium chloride solution, J Clean Prod, 210, pp. 660-672, (2019)
[9] Brauchler C., Delimitation and revision of the genus Thymbra (Lamiaceae), Phytotaxa, 369, 1, (2018)
[10] Charfi S., Boujida N., Abrini J., Senhaji N.S., Study of chemical composition and antibacterial activity of Moroccan Thymbra capitata essential oil and its possible use in orange juice conservation, Mater Today Proc, 13, pp. 706-712, (2019)

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