Mitigation effect of novel bipyrazole ligand and its copper complex on the corrosion behavior of steel in HCl: Combined experimental and computational studies

Radi, A.; Mahi, B. El; Aouniti, A.; Massoudi, Mo. El; Radi, Smaail; Kaddouri, M.; Chelfi, Tarik; Jmiai, A.; Asri, Abdallah El; Hammouti, B.; Warad, Ismail; Guenbour, A.; Zarrouk, A.

doi:10.1016/j.cplett.2022.139532

Cited by 13 publications

(4 citation statements)

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“…13 a,c), resulting in the appearance of crystalline aggregates of the by-products of corrosion on the surface as well as a porous and rough outer layer. As a result of the metal's dissolution, corrosion products produced by the attack of chloride and sulfate ions severely harm the surface 73 , 74 . In contrast, there is significantly less damage to the copper surface when the DAMP is present (Fig.…”

Section: Resultsmentioning

confidence: 99%

Chemical, electrochemical, and quantum investigation into the use of an organophosphorus derivative to inhibit copper corrosion in acidic environments

Deyab,

AlGhamdi,

Abdeen

et al. 2024

Sci Rep

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In order to protect the copper against corrosion, a novel corrosion inhibitor known as diphenyl ((2-aminoethyl) amino) (4-methoxyphenyl) methyl) phosphonate (DAMP) was developed. Acid solutions of HCl and H2SO4 were the aggressive solutions employed in this study. Analysis using the FT-IR, 1H-NMR, 31P-NMR, 13C-NMR and BET confirmed that the DAMP was successfully synthesized. The anti-corrosion capabilities of DAMP are evaluated using a combination of chemical, electrochemical and quantum studies. The DAMP has been found to be crucial in preventing the corrosion of copper in both HCl and H2SO4 acid. This was obviously implied by the observation that the corrosion rate of copper in acid solutions decreased when DAMP was added. It is significant to note that 180 ppm produced the highest levels of inhibiting efficiency (96.6% for HCl and 95.2% for H2SO4). The tendency of DAMP to adsorb on the surface of copper through its hetero-atoms (O, N, and P) is the main factor for the anti-corrosion capabilities of DAMP. Results from SEM/EDX tests supported this. The actual adsorption takes place via various active centers, physical and chemical mechanisms that are coordinated with the estimated quantum parameters. Additionally, the adsorption of DAMP adheres to the Langmuir isotherm.

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Section: Resultsmentioning

confidence: 99%

Chemical, electrochemical, and quantum investigation into the use of an organophosphorus derivative to inhibit copper corrosion in acidic environments

Deyab,

AlGhamdi,

Abdeen

et al. 2024

Sci Rep

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“…The peak positions for HTZS , HTZ , and HPYS were slightly shifted to 245, 240, and 238 nm, respectively, to correspond to π–π *lone pair electron transmissions with a minor reduction in the absorbance’s intensity. According to the literature, , a shift in the location of the absorbance maximum and the absorbance value in an inhibited solution are signs that a complex between the metal ions and the inhibitor has formed. So, the hydrazones–Fe 2+ complex acts as a barrier that effectively protects the surface of the C-steel from corrosive H 3 PO 4 solution attack.…”

Section: Methodsmentioning

confidence: 99%

“…In turn, the chemicals can readily corrode the plate by penetrating the steel. , The C-steel surface in Figure b is exceedingly rough, with thick, uneven layers covering the surface when exposed to a very powerful solution without inhibitors (blank). The presence of a strong oxygen peak in the C-steel EDX spectra of the blank makes it obvious that corrosion-induced processes produce iron oxide (rust).…”

Section: Methodsmentioning

confidence: 99%

An Exploratory Experimental Analysis Backed by Quantum Mechanical Modeling, Spectroscopic, and Surface Study for C-Steel Surface in the Presence of Hydrazone-Based Schiff Bases to Fix Corrosion Defects in Acidic Media

Moustafa,

Abdel-Rahman,

Barakat

et al. 2024

ACS Omega

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This work focuses on developing corrosion control and protecting the environment by creating affordable, sustainable, environmentally friendly, and efficient corrosion resistance chemicals. That is, through synthesized three hydrazone Schiff bases E-2-(1-hydrazonoethyl)thiazole (HTZ), 2-((E)-(((Z)-1-(thiazol-2-yl)ethylidene)hydrazono)methyl)phenol (HTZS), and 2-((E)-(((Z)-1-(pyridin-2-yl)ethylidene)hydrazono)methyl)phenol (HPYS) and corrosion inhibitors for C-steel in 8 M H 3 PO 4 solution that were studied. The chemicals were analyzed by using 1 H NMR and 13 C NMR spectroscopy to learn more about them.Predominantly, the hydrazone-based Schiff bases have been considered powerful inhibitors due to their ability to be adsorbed with very low concentrations through their reactive sites (N, O, and S). Maximum surface (θ max ) coverage and inhibition efficiency of 83.33% were sufficiently found at 99.00 × 10 −3 mol/L concentration of HTZS at 293 K. Galvanostatic experiments demonstrated that raising the concentration of hydrazones improved mass transfer resistance. To study microstructure, scanning, reflectance, and energy-dispersive X-rays were used. Roughness and qualitative adhesion of the adsorbed layer were estimated by an atomic force microscope. After adding 99.00 × 10 −3 mol/L of HTZS, the degree of surface brightness and reflectance increases to 137.20, relative to the corroded electrolyte-free solution 27.70. The roughness (Ra) decreased from 0.468 to 0.088 μm by adding HTZS. A surface morphology study confirmed that adding hydrazones to the C-steel dissolution bath greatly improves the surface's look and texture quality. The atomic absorption spectroscopy technique was used to compare the concentration of the iron ions that remained in the solution after galvanostatic analysis in the absence and presence of the hydrazones under different conditions; it was found that the inhibited solution contained lower concentrations of iron ions as compared to the uninhibited solution. The DFT theoretical analysis verified the observation of hydrazone physical adsorption through bonding electrons that obey kinetic adsorption isotherms. It is based on examining the highest occupied molecular orbital−lowest occupied molecular orbital (HOMO−LUMO), the Fukui functions, and the Mulliken atomic charge. Overall, the results suggest that HTZS is a good corrosion inhibitor with a large surface area due to the presence of S, N, and O atoms, allowing for creating a larger surface due to the large molecular volume of atoms protecting against the corrosion process.

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“…Further technical and theoretical details on the electrochemical methods and weight loss measurement were published by our lab members in their works [22][23][24][25][26][27].…”

Section: Eis and Polarization Curvesmentioning

confidence: 99%

Experimental and Theoretical Investigations of Argania spinosa’s Extracts on the Antioxidant Activity and Mild Steel Corrosion’s Inhibition in 1 M HCl

et al. 2022

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The aim of the present research is the evaluation of the extraction process effect on the chemical composition, the antioxidant activities, and the mild steel corrosion inhibition ability of Argania spinosa’s extracts (alimentary oil (AO) and hexanic extract of roasted almonds (HERA)). The chemical composition revealed that both extracts have the same major compounds: Palmitic, linoleic, and stearic acids, with their order slightly different. Electrochemical impedance spectroscopy (EIS), weight loss measurements, and polarization curves were used to estimate AO and HERA’s mild steel corrosion’s inhibition capacity. Based on these three methods, AO registered, respectively, 81%, 87%, and 87% inhibition efficiency while HERA registered 78%, 84%, and 82% inhibition efficiency. The antioxidant activity of AO and HERA was examined in parallel with standard antioxidants (gallic acid and quercetin) using two assays: DPPH* scavenging assay and ferric reducing antioxidant power assay (FRAP). AO had less EC50 in both techniques (DPPH*: 3559.08 ± 161.75 μg/mL; FRAP 1288.58 ± 169.21 μg/mL) than HERA (DPPH*: 3621.43 ± 316.05 μg/mL; FRAP 1655.86 ± 240.18 μg/mL). Quantum chemical and molecular dynamic studies were employed to suggest the adsorption mechanism.

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Mitigation effect of novel bipyrazole ligand and its copper complex on the corrosion behavior of steel in HCl: Combined experimental and computational studies

Cited by 13 publications

References 98 publications

Chemical, electrochemical, and quantum investigation into the use of an organophosphorus derivative to inhibit copper corrosion in acidic environments

Chemical, electrochemical, and quantum investigation into the use of an organophosphorus derivative to inhibit copper corrosion in acidic environments

An Exploratory Experimental Analysis Backed by Quantum Mechanical Modeling, Spectroscopic, and Surface Study for C-Steel Surface in the Presence of Hydrazone-Based Schiff Bases to Fix Corrosion Defects in Acidic Media

Experimental and Theoretical Investigations of Argania spinosa’s Extracts on the Antioxidant Activity and Mild Steel Corrosion’s Inhibition in 1 M HCl

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