Corrosion Inhibition of Carbon Steel in 0.5 M H2SO4 by New Reduced Schiff Base Ligand

Jafari, Hojat; Rezaeivala, Majid; Mokhtarian, Nader; Berisha, Avni; Ameri, Elham

doi:10.1007/s40735-022-00679-9

Cited by 25 publications

(16 citation statements)

References 64 publications

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“…HOMO electron density is diffused towards the molecule heteroatoms (O and N), meaning that these molecules can transmit electrons to the Al surface, as can be noticed in Figure7. Coating a protective organic layer on metal surfaces arises from this electron sharing, which shields the metal from corrosion [41]. Electron acceptors termed LUMOs are connected to parts of the inhibitor that receive electrons from an electron surface rich in metals, such as that found in Al [44].…”

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

“…Table 2 lists the most often reported descriptors (the formulae used to construct them may be found elsewhere [41]). A better understanding of the adsorptive behavior of inhibitors may be achieved by analyzing the DFT simulations of inhibitor adsorptive reactivity [41]. Due to their low electron affinity and high ionization potential, it is commonly thought that the adsorption of inhibitors onto the Al(111) surface is supported by its capacity to exchange electrons with the Al surface (Table 2) [41].…”

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

“…A better understanding of the adsorptive behavior of inhibitors may be achieved by analyzing the DFT simulations of inhibitor adsorptive reactivity [41]. Due to their low electron affinity and high ionization potential, it is commonly thought that the adsorption of inhibitors onto the Al(111) surface is supported by its capacity to exchange electrons with the Al surface (Table 2) [41]. Chemical softness and hardness are predicted values representing the inhibitor adsorption affinity for the metal surface, as are high values of chemical softness.…”

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

“…A conformer search (Boltzmann jump technique; the number of conformers: 8000; utilizing the COMPASS II forcefield) was undertaken in the early phase of the procedure in order to acquire the lowest feasible starting energy for the molecule while speeding up DFT computations [29][30][31][32][33][34][35][36][37][38][39][40][41][42]. Calculations for DFT were started with the lowest-energy conformer shown by the image in Figure 5.…”

Section: Dft Analysismentioning

confidence: 99%

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Experimental and theoretical investigations of new Schiff base compound adsorption on aluminium in 1 M HCl

Jafari

Ameri

Soltanolkottabi

et al. 2022

J. Electrochem. Sci. Eng.

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The new Schiff base, 2,2'-((1Z,1'Z)-(((propane-1,3-diylbis(oxy))bis(2,1-phenylene))bis(methanylylidene))bis(azanylylidene))diethanol, was investigated as a corrosion inhibitor of aluminium in 1 M HCl. Polarization and electrochemical impedance measurements were used for this purpose. Polarization curves showed that the compound is a mixed-type corrosion inhibitor. Also, the results showed an increase in inhibition efficiency as the concentration of the compound increased. The maximum corrosion inhibition efficiency of approximately 81 % was reached at the concentration of 2 mg/L of the inhibitor. The results of the density functional theory method were consistent with the experimental results. The surface morphology of the samples was examined under atomic force microscopy.

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Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

Section: Figure 5 Energies Of the Conformer Search And The Resultant ...mentioning

confidence: 99%

Section: Dft Analysismentioning

confidence: 99%

See 3 more Smart Citations

Experimental and theoretical investigations of new Schiff base compound adsorption on aluminium in 1 M HCl

Jafari

Ameri

Soltanolkottabi

et al. 2022

J. Electrochem. Sci. Eng.

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N‐(4‐Chloromethylbenzyl)‐N, N‐dimethyldodecan‐1‐aminium Chloride: A Quaternary Ammonium Surfactant as Corrosion Inhibitor

Yaagoob,

Goni,

Verma

et al. 2023

ChemistrySelect

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This study used a quaternary surfactant, N‐(4‐Chloromethylbenzyl)‐N, N‐dimethyldodecan‐1‐aminium chloride (CMBDAC), as an excellent corrosion inhibitor of C1018 carbon steel (C1018 CS) in harsh 15 % HCl acidizing condition. CMBDAC was synthesized with an excellent yield and characterized by NMR, FTIR, and TGA. Gravimetric weight loss (WL), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP) studies were employed to measure the efficacy of CMBDAC. At a relatively low concentration of 15 ppm, CMBDAC surpassed 90 % inhibition efficiency, with a maximum inhibition efficiency of 99.25 % being reached just for 50 ppm of CMBDAC. The inhibitor showed an efficacy of 96.16 % even at a temperature of 60 °C via the WL technique, showing potential to be used as a high‐temperature corrosion inhibitor. The adsorption isotherm study revealed that CMBDAC followed Langmuir adsorption isotherm. The Gibbs free energy of adsorption ( was calculated to be −40.43 kJ mol−1, indicating that CMBDAC was adsorbed via chemisorption. A very high value (1.68×105 L mol−1) of equilibrium constant ( ) suggested very strong adsorption of the inhibitor. PDP study disclosed that CMBDAC acted as a mixed‐type inhibitor. SEM‐EDX study demonstrated the adsorption of CMBDAC on the C1018 surface. Different DFT‐optimized parameters have been discussed in detail to support the superb inhibitory action indicated by CMBDAC.

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Melamine-benzaldehyde tris-schiff base as an efficient corrosion inhibitor for mild steel in 0.5 molar hydrochloric acid solution: Weight loss, electrochemical, theoretical and surface studies

Arshad,

Qureshi,

Lee

et al. 2023

Korean J. Chem. Eng.

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Corrosion Inhibition of Carbon Steel in 0.5 M H2SO4 by New Reduced Schiff Base Ligand

Cited by 25 publications

References 64 publications

Experimental and theoretical investigations of new Schiff base compound adsorption on aluminium in 1 M HCl

Experimental and theoretical investigations of new Schiff base compound adsorption on aluminium in 1 M HCl

N‐(4‐Chloromethylbenzyl)‐N, N‐dimethyldodecan‐1‐aminium Chloride: A Quaternary Ammonium Surfactant as Corrosion Inhibitor

Melamine-benzaldehyde tris-schiff base as an efficient corrosion inhibitor for mild steel in 0.5 molar hydrochloric acid solution: Weight loss, electrochemical, theoretical and surface studies

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