Bis-benzothiazoles as efficient corrosion inhibitors for mild steel in aqueous HCl: Molecular structure-reactivity correlation study

Suhasaria, Aditya; Murmu, Manilal; Satpati, Sanjoy; Banerjee, Priyabrata; Sukul, Dipankar

doi:10.1016/j.molliq.2020.113537

Cited by 64 publications

(14 citation statements)

References 55 publications

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“…The slope value of the Bode plot and the maximum phase angle values show a deviation from their ideal values of −1 and −90 0, respectively. However, with the rise in the concentration of inhibitor, the increase in the phase angle values, showing an improvement in the surface homogeneity in the presence of the inhibitor [25] . This again supports the inhibitor adsorption at the carbon steel surface.…”

Section: Resultssupporting

confidence: 67%

“…However, with the rise in the concentration of inhibitor, the increase in the phase angle values, showing an improvement in the surface homogeneity in the presence of the inhibitor. [25] This again supports the inhibitor adsorption at the carbon steel surface. Similarly, the impedance modulus (log j Z j) values also show an increase in the presence of Aliquat 336 and with KI, which supports a rise in the barrier against the charge transfer process of corrosion.…”

Section: Impedance Measurementssupporting

confidence: 58%

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Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H₂SO₄: Experimental and Computational Approach

Singh

Chauhan

et al. 2021

ChemistrySelect

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An ionic liquid Aliquat 336 was for the first time analyzed for its adsorption and corrosion inhibition behavior for carbon steel surface in 0.5 M H 2 SO 4 . The inhibition performance was studied using gravimetric and electrochemical techniques supported by surface analytical measurements. The inhibitor exerted an efficiency of 96.53 % at 12 × 10 À 6 M. Significant improvement was achieved with iodide ions, which at 3.01 × 10 À 4 M, produced a remarkable rise in the efficiency to 99.03 %. The adsorption of the inhibitor on the metallic surface followed the Langmuir isotherm at 298 K in the concentration range of 2.47 to 12.37 × 10 À 6 M. Polarization studies indicated a mixed-mode of inhibitor action with the cathodic predominance. The SEM studies showed a smooth metal surface in contact with the inhibitor, and a representative decrease in surface roughness was observed by AFM studies. Monte Carlo simulations showed inhibitor adsorption in a flat orientation on the metal surface with high adsorption energy.

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Section: Resultssupporting

confidence: 67%

Section: Impedance Measurementssupporting

confidence: 58%

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H₂SO₄: Experimental and Computational Approach

Singh

Chauhan

et al. 2021

ChemistrySelect

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“…The benzo imidazole [169] derivative, pyridine thiazole [170] compound, imidazole derivatives [171], phenanthroimidazole derivatives [172], and bis-benzothiazoles derivatives [173] can be used as corrosion inhibitor potency for mild steel and others. Pyridine, Indoles, [174][175][176][177], and Quinoline [44,[178][179][180][181] have shown sufficient potency for inhibition of iron, aluminum, carbon steel, N80 steel, mild steel, and zinc in different acidic media.…”

Section: Heterocyclic Compounds As Organic Corrosion Inhibitormentioning

confidence: 99%

Organic Corrosion Inhibitors

Sahu¹

2023

Introduction to Corrosion - Basics and Advances

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Organic corrosion inhibitors are preferred due to its environmental friendly and effectiveness at a wide range of temperatures. The efficiency of an organic inhibitor depends on the size of the organic molecule, aromaticity, type, and number of bonding atoms or groups in the molecule (either π or σ), nature and surface charge, the distribution of charge in the molecule, and type of aggressive media. The presence of polar functional groups with S, O, or N atoms in the molecule, heterocyclic compounds and pi electrons present in the molecule also increases the efficiency of these organic corrosion inhibitors. The use of computational chemistry such as density functional theory (DFT), molecular dynamic simulation (MD), Monte Carlo (MC) simulations, and quantitative structure-activity relationship (QSAR) modeling has been applied for study of corrosion inhibition properties of organic compounds. This chapter will explain about theoretical and computational study of organic compounds as corrosion inhibitors.

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“…Benzothiazole derivatives are industrially identified as antioxidant 2 , corrosion inhibitors and surface-active chelating agents for mineral processing 3 . Benzothiazole nucleus are valuable for their biological activities and found as anticancer, antimicrobial, antidiabetic, anti-inflammatory, antiviral, antileishmanial, and antiviral 4 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of New Benzothiazole-derived Schiff Bases Metal Complexes

2022

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Nitrogen-comprising heterocyclic compounds and their derivatives have empirically been invaluable as therapeutic agents. Fundamentally, 4-chloro-6-nitro-2-amino-1,3-benzothiazole 1 was synthesized via bromination of 2-chloro-4-nitro aniline with ammonium thiocyanate. This new heterocyclic haloorganoamino-1,3-benzothiazole derivative, was a starting material, which condensed and tethered with three different aromatic aldehyde pendant arm in presence of ethanol and glacial acetic acid isolating an interesting sequence of tridentate Schiff bases 2-4. These compounds were used for complexation reactions in 1:1 (metal: ligand) stoichiometry to obtain heteroleptic Al(III), Ni (II) and K(I) benzothiazole chelates 5-7(a-c) of the type [Al(L)Cl 2 , Ni(L)Cl, K(L) {L = Schiff base derivatives}]. The newly synthesized complexes were characterized by the melting points, IR and some of them by 1 H-NMR spectroscopy and only one by X-ray techniques. The structures of complexes were anticipated from the spectroscopic studies.

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Bis-benzothiazoles as efficient corrosion inhibitors for mild steel in aqueous HCl: Molecular structure-reactivity correlation study

Cited by 64 publications

References 55 publications

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H₂SO₄: Experimental and Computational Approach

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H₂SO₄: Experimental and Computational Approach

Organic Corrosion Inhibitors

Synthesis and Characterization of New Benzothiazole-derived Schiff Bases Metal Complexes

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Bis-benzothiazoles as efficient corrosion inhibitors for mild steel in aqueous HCl: Molecular structure-reactivity correlation study

Cited by 64 publications

References 55 publications

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H2SO4: Experimental and Computational Approach

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H2SO4: Experimental and Computational Approach

Organic Corrosion Inhibitors

Synthesis and Characterization of New Benzothiazole-derived Schiff Bases Metal Complexes

Contact Info

Product

Resources

About

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H₂SO₄: Experimental and Computational Approach

Synergistic Effect of Iodide Ion and N‐methyl‐N,N,N‐trioctylammonium Chloride on Corrosion Inhibition of Carbon Steel in 0.5 M H₂SO₄: Experimental and Computational Approach