Extended protection of mild steel in molar HCl using the Garcinia Indica fruit rind extract (GIW) and iodide ions; electrochemical, thermodynamic and kinetic studies

Thomas, Asha; At, Jeeja Rani; Joseph, Abraham

doi:10.1016/j.jics.2021.100167

Cited by 12 publications

(5 citation statements)

References 33 publications

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“…Adsorption happens initial of the immersion period, as also seen by the increase in E a (refer to Table 3) after adding HMDBT to the 1 M HCl solution. 67,68 The greater thickness of the double layer in the inhibitor-containing solution correlates with a larger E a value, which increases the corrosion process' activation energy. 69 Because of HMDBT's adsorption on the metal surface, the corrosion rate diminishes in the presence of these species.…”

Section: ■ Conclusionmentioning

confidence: 99%

Assessment of the Inhibitory Efficacy of a Thiazole Derivative as an Efficient Corrosion Inhibitor for Augmenting the Resistance of MS in Acidic Environments

Assad,

Saha,

Kang

et al. 2024

Langmuir

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Numerous thiazole compounds have been developed as cutting-edge inhibitors because of a rising fascination with using corrosion inhibitors (CIs) and preventative measures to prevent mild steel (MS) from deteriorating. In this study, the ability of a novel thiazole derivative, 2hydrazono-3-methyl-2,3-dihydrobenzo[d]thiazole hydrochloride (HMDBT), to prevent corrosion of MS (MS) in HCl has been reconnoitered using various approaches, Viz. gravimetric analysis, electrochemical (EC) analysis, and different surface characterizations. With an inhibition efficiency (IE %) of 95.35%, the outcomes elucidate that HMDBT functions as a potent MS CI that is environmentally friendly and sustainable. The computed activation and thermodynamic factors were also employed to better explain the process underpinning the inhibiting tendency of HMDBT. According to the computed values, the HMDBT molecules physically and chemically adhered to the MS surface following the Langmuir model, generating a dense protective layer that may be associated with the presence of a benzene ring and heteroatoms (S & N) in the HMDBT architecture. Based on the findings of the EIS studies, an intensification in the CI's concentration from (50 →800) ppm is ushered by increases in polarization resistance (R p ) from (80.72, 354.31) Ω cm 2 , and attenuation in double-layer capacitance (C dl ) from (198.78 → 44.13) μF cm −2 , respectively, confirming the inhibitory proficiency of HMDBT. The IE of the inhibitor was reported around 95.35% by weight loss measurement and 89.94% through EC measurement. Theoretical analysis including density functional theory (DFT) and molecular dynamics (MD) simulations were carried out to investigate the additional effects of HMDBT on the anticorrosion effectiveness and mechanism of inhibition. The theoretical parameters that were calculated provided important assistance in comprehending the inhibitory mechanism that the CI's moieties disclosed and are in strong concord with experimental methods. To create a "green" inhibitor system, the work presented here provided a potent technique to reduce corrosion by adding a potent new inhibitor.

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Section: ■ Conclusionmentioning

confidence: 99%

Assessment of the Inhibitory Efficacy of a Thiazole Derivative as an Efficient Corrosion Inhibitor for Augmenting the Resistance of MS in Acidic Environments

Assad,

Saha,

Kang

et al. 2024

Langmuir

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“…The positively charged active species of CIW from the corrosive media are attached to the electrical double layer formed between the metal and the electrolyte by the replacement of pre-adsorbed water molecules. The enhancement in the thickness of the electrical double layer so formed improves the charge transfer resistance and hence offers a better surface coverage [58][59][60] (Figure 8). The adsorption process of the alcoholic group of 1-heptatriacotanol, 3, 7, 11, 15 tetramethyl-2-hexadecen-1-ol, and phytol on Fe (110) surface takes place either through the chemical or physical adsorption process.…”

Section: Mechanism Of Inhibitionmentioning

confidence: 99%

Computational modelling and correlation of physical parameters of 1-heptatriacotanol, phytol and 3, 7, 11, 15-tetra methyl-2-hexadecen-1-ol with the corrosion inhibition efficiency of CIW for mild steel in HCl

Rani

Arshad

Kuruvilla³

et al. 2023

Corrosion Engineering, Science and Technology

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Aqueous leaves extract of Clerodendrum infortunatum (CIW) was used as inhibitor for mild steel corrosion in 0.5 N HCl. Inhibition efficiency decreases with temperature. The presence of 1heptatriacotanol, the diterpene alcohols like phytol and 3, 7, 11, 15 tetramethyl-2-hexadecen-1-ol are identified as major constituents through GC-MS analysis of CIW. The electronic properties and inhibition efficiency of these compounds were evaluated using DFT and material studio software. The donor-acceptor type interactions resulting from the migration of lone pair of electrons of the 'O' atom of these molecules to the vacant 'd' orbital of the metal is evident from these calculations. The reduction in the double-layer capacitance with the incremental addition of CIW is noticed. CIW offers mixed inhibition with anodic predominance. CIW forms a multimolecular layer on the metal surface obeying the Temkin isotherm model. Surface perturbations were followed qualitatively by SEM, stereomicroscope and XPS.

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“…In recent times, plant extracts have gained attention as environmentally friendly and cost-effective corrosion inhibitors due to the numerous compounds present in them, such as alkaloids, amino acids, organic acids, monosaccharides, polysaccharides, and proteins, containing a significant amount of hydroxyl and unsaturated functional groups, which could inhibit metal corrosion [15][16][17][18][19][20]. However, the corrosion inhibition efficiency of a single plant extract may not be optimal, and combining it with other substances could increase its effectiveness [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…The study showed that the corrosion inhibition efficiency was maintained at 83% at 323 K. This was achieved through the enhancement of the interaction force between Punica granatum extract and the steel surface by KI. Similarly, Tang et al [30] investigated the synergistic corrosion inhibition effect of Mikania micrantha extract and KI in 0.5 M H 2 SO 4 solution, and their study results showed that the synergistic coefficient (S) was greater than 1, with the inhibition efficacy maintained above 90% in the temperature range of 293 K to 323 K. Thomas et al [23] also extracted corrosion inhibitors from Garcinia indica fruit rind using the reflux method and conducted a study on their synergistic corrosion inhibition mechanism with KI on mild steel in 1 M HCl. The research showed that the mixture of Garcinia indica fruit rind extract and KI was an efficient corrosion inhibitor, with I − acting as a bridge between the inhibitor and the metal.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Benincasa hispida Peel Extract and KI on the Corrosion Inhibition of Mild Steel in HCl

et al. 2023

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This study employed Benincasa hispida peel as a raw material for the preparation of Benincasa hispida peel extract (BHPE) via hot water extraction and freeze-drying processes. The synergistic effect of BHPE and KI on the corrosion inhibition of mild steel in 1 M HCl was investigated. The compositional analysis shows that BHPE consists mainly of a mixture of sugars, characterized by a high density of hydroxyl groups and unsaturated functional groups, characteristic of highly effective corrosion inhibitors. Electrochemical experiments and surface analysis show that the composite of BHPE and KI can effectively provide protection to mild steel. Moreover, the synergistic coefficient of BHPE and KI under various concentration conditions was greater than 1, and the highest corrosion inhibition efficiency was 94.4%. In addition, the corrosion inhibition mechanism of BHPE was thoroughly investigated using quantum chemistry (QC) and molecular dynamics simulation (MDS).

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Extended protection of mild steel in molar HCl using the Garcinia Indica fruit rind extract (GIW) and iodide ions; electrochemical, thermodynamic and kinetic studies

Cited by 12 publications

References 33 publications

Assessment of the Inhibitory Efficacy of a Thiazole Derivative as an Efficient Corrosion Inhibitor for Augmenting the Resistance of MS in Acidic Environments

Assessment of the Inhibitory Efficacy of a Thiazole Derivative as an Efficient Corrosion Inhibitor for Augmenting the Resistance of MS in Acidic Environments

Computational modelling and correlation of physical parameters of 1-heptatriacotanol, phytol and 3, 7, 11, 15-tetra methyl-2-hexadecen-1-ol with the corrosion inhibition efficiency of CIW for mild steel in HCl

Synergistic Effect of Benincasa hispida Peel Extract and KI on the Corrosion Inhibition of Mild Steel in HCl

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