A study of the anti-corrosive effects of essential oils of rosemary and myrtle for copper corrosion in chloride media

Dhouibi, Ines; Masmoudi, Fatma; Bouaziz, Mohamed; Masmoudi, M.

doi:10.1016/j.arabjc.2020.102961

Cited by 43 publications

(23 citation statements)

References 67 publications

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“…Figure 1S2,S3 shows that the open potential values of carbon steel were in the negative direction after adding S2 and S3, which confirms that the damping effect of the compounds S1 and S2 is greater on the anodic reaction than on the cathodic reaction. 22,23 2.2. Potentiodynamic Polarization (PDP).…”

Section: Resultsmentioning

confidence: 99%

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

et al. 2021

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Metal corrosion is an important economic problem globally. One of the best ways to protect metal surfaces from corrosion is by the use of corrosion inhibitors, especially surfactants. This study assesses anticorrosion properties of three inhibitor compounds (S1, S2, and S3) of ethoxylate sulfanilamide containing 2, 10, and 20 units of ethylene oxide on carbon steel in 1 M HCl solution. The anticorrosive performance of S1, S2, and S3 was studied using potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS), adsorption isotherm, surface tests (scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, and X-ray diffraction (XRD) analysis), and computational studies (density functional theory (DFT) and molecular dynamics (MD) simulations) within the concentration range of 10 –6 to 10 –2 M at 30 ± 2 °C. The results of the methods used indicate that increasing the concentration of the inhibitor compounds improves the effectiveness of inhibition (from 50.9 to 98%), whereas the inhibition efficiency order for ethoxylated sulfanilamide compounds is S2 > S3 > S1 with the highest inhibiting efficiency, respectively, of 98.0, 95.0, and 90.0% for 10 –2 M. Also, PDP indicated that S1, S2, and S3 inhibitors act as mixed-type inhibitors and their adsorption obeys the Langmuir adsorption isotherm model. Surface tests show that the studied compounds can significantly inhibit acid attack via chemical adsorption on the metal. Furthermore, all of the chemical descriptors derived from DFT indicate that the three inhibitors are quite well adsorbed by the adhesion centers on the CS surface. The three compounds’ molecular geometries and electronic structures were calculated using quantum chemical calculations. Using theoretical computations, the energy difference between the highest occupied molecular orbital and the lowest occupied molecular orbital has been determined to represent chemical reactivity and kinetic stability of a composition.

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Section: Resultsmentioning

confidence: 99%

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

et al. 2021

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“…The peak at 987 cm −1 and 1217 cm −1 was due to the ether function of an epoxy ring of 1, 8-cineole. The peak at 1082 cm −1 was related to the asymmetric stretching of the C-O bond [52,53]. The FTIR spectrum of nisin showed that the peak at 3284 cm −1 was due to the axial tensile vibration of O-H and N-H.…”

Section: Uv-vis Spectral Analysismentioning

confidence: 99%

A Novel Biocompatible Ternary Nanoparticle with High Antibacterial Activity: Synthesis, Characterization, and Its Application in Beef Preservation

Lin

Luo

Li³

et al. 2022

Foods

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Edible nanoparticles containing antibacterial agents are one of the effective strategies to control foodborne diseases. Herein, novel ternary nanoparticles (TNP) were prepared from rosemary essential oil (REO), nisin and Lycium barbarum polysaccharides (LBP) through hydrophobic and electrostatic interaction. The average particle size of TNP was 211.5 nm, and its encapsulation efficiency reached 86.6%. After the addition of LBP, the physical stability, thermal stability and storage stability of TNP were significantly improved. In vitro, compared with the control group, the population of S. aureus and E. coli O157:H7 in the TNP-treated group was reduced by 2.386 log CFU/mL and 1.966 log CFU/mL, respectively, on the fifth day. The free radical scavenging rate of TNP was 63.15%. The application of TNP on beef presented favorable preservation effects without affecting its color and texture. Therefore, the synthesis strategy of TNP has important reference significance for the research and development of new food antibacterial agents.

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“…44 The E oc monitoring shows that imidazole and their derivatives probably have a greater inhibitory effect on the cathodic reaction than the anodic reaction of the Cu 0 corrosion. 45 This phenomenon is explained by the adsorption of the imidazole-based molecules on the active sites on the Cu 0 surface, changing the oxygen concentration at the electrode/ solution interface. [45][46][47] Potentiodynamic polarization curves obtained for Cu 0 in aerated 0.5 mol L -1 H 2 SO 4 solution in the presence and absence of the imidazole-based compounds are shown in Figure 3.…”

Section: Electrochemical Studiesmentioning

confidence: 99%

“…45 This phenomenon is explained by the adsorption of the imidazole-based molecules on the active sites on the Cu 0 surface, changing the oxygen concentration at the electrode/ solution interface. [45][46][47] Potentiodynamic polarization curves obtained for Cu 0 in aerated 0.5 mol L -1 H 2 SO 4 solution in the presence and absence of the imidazole-based compounds are shown in Figure 3. Figure 3a shows that the corrosion potentials (E corr ) for imidazole-based compounds are shifted towards more negative values in comparison to the blank curve, as seen in Figure 2.…”

Section: Electrochemical Studiesmentioning

confidence: 99%

Inhibition of Copper Corrosion in Acid Medium by Imidazole-Based Compounds: Electrochemical and Molecular Approaches

Costa¹,

Almeida-Neto²,

Marinho³

et al. 2023

J. Braz. Chem. Soc.

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Chemically modified imidazole molecules: 4-(1H-imidazol-1-yl)aniline, 4-(1H-imidazol1-yl)benzaldehyde, 4-(1H-imidazol-1-yl)phenol and (4-(1H-imidazol-1-yl)phenyl)methanol were investigated as inhibitors of the copper (Cu0) corrosion in 0.5 mol L-1 H2SO4 medium. The electrochemical corrosion data were obtained by monitoring open circuit potential, linear potentiodynamic polarization and electrochemical impedance spectroscopy techniques, while the computational density functional theory (DFT) method was applied to correlate the electronic properties of the molecules with corrosion inhibition efficiencies. All molecules had inhibited the Cu corrosion, and the inhibition values lied between 80 and 94%. A good correlation between the inhibition efficiencies values and Gibbs adsorption energy was found, showing that the more negative Gibbs energy, better interaction between the corrosion inhibitor with the Cu0 surface, diminishing its corrosion in 0.5 mol L-1 H2SO4 medium. The DFT calculations showed significative differences in electronic and reactivity properties of imidazole and other molecules. The higher corrosion inhibition of imidazole derivates could be explained by electrophilic characteristic of these molecules, since there are empty molecular orbitals spread over mainly in benzene rings that make a metal-ligand charge transfer, receiving electronic density from the copper surface by backbonding, according to the electronic Fukui functions and the potential charge distribution considering the map of electrostatic potential.

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A study of the anti-corrosive effects of essential oils of rosemary and myrtle for copper corrosion in chloride media

Cited by 43 publications

References 67 publications

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

Anticorrosion Effect of Ethoxylate Sulfanilamide Compounds on Carbon Steel in 1 M Hydrochloric Acid: Electrochemical and Theoretical Studies

A Novel Biocompatible Ternary Nanoparticle with High Antibacterial Activity: Synthesis, Characterization, and Its Application in Beef Preservation

Inhibition of Copper Corrosion in Acid Medium by Imidazole-Based Compounds: Electrochemical and Molecular Approaches

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