Understanding corrosion inhibition of mild steel in acid medium by new benzonitriles: Insights from experimental and computational studies

Chaouiki, Abdelkarim; Lgaz, Hassane; Ali, Ismat H.; Gaonkar, Santosh L.; Bhat, K. Subrahmanya; Salghi, R.; Oudda, H.; Khan, Mair

doi:10.1016/j.molliq.2018.06.103

Cited by 103 publications

(27 citation statements)

References 54 publications

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“…Low‐carbon steel (or mild steel) is one of the most widely used alloys in the manufacture of different oil equipment because it has good mechanical and physical properties, however, similar to other metals and alloys, mild steel is susceptible to corrosion. The most critical problems faced by industrial oil facilities worldwide (oil pipes, tanks, steam boilers, and other equipment) are related to corrosion, many studies performed in this field are aimed to decrease the corrosion in the oil facilities The kerosene tanks used by the Midland Refineries Company at the Al‐Durra refinery in Baghdad, Iraq, is suffering this problem.…”

Section: Introductionmentioning

confidence: 99%

Aminotriazole Derivative as Anti‐Corrosion Material for Iraqi Kerosene Tanks: Electrochemical, Computational and the Surface Study

et al. 2019

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A triazole inhibitor, 3,5-di(4-hydroxyphenyl)-4-amino-1,2,4-triazole (HAT), was investigated as an anticorrosion material for carbon steel in Iraqi kerosene tanks using Tafel polarization method at (303, 313, 323, and 333 K) and (100-500 ppm) in kerosene medium. The results showed that the highest inhibition efficiency was obtained at 86.74% in 100 ppm and 333 K. The studied thermodynamic parameters show that the adsorption isotherm of the HAT inhibitor on the steel surface was identical to Langmuir isotherm. The polarization behavior revealed that this inhibitor acts as a mixed-type inhibitor, the corrosion inhibition data have been measured and discussed in details to predict the performance of the inhibitor. The morphology of the inhibited surfaces was characterized using scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS) and an atomic force microscope (AFM). Furthermore, the Fourier transform infrared (FT-IR) technique was used to show the interaction between HAT and the steel surface. Also, the antimicrobial activity of HAT inhibitor against some types of corrosive bacteria was examined. In addition, quantum chemical parameters were calculated by density functional theory to reveal the active centers of the inhibitor and clarify the correlation of molecular structure of the inhibitor and its efficiency of the inhibition.

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Section: Introductionmentioning

confidence: 99%

Aminotriazole Derivative as Anti‐Corrosion Material for Iraqi Kerosene Tanks: Electrochemical, Computational and the Surface Study

et al. 2019

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“…Mild steel (MS) is an important metal alloy that has found extensive industrial application due to its excellent physical properties, affordability, and simple smelting process . However, MS is susceptible to corrosion in acidic solution especially in processes like etching and acid pickling, causing severe financial and industrial losses . Corrosion, though unavoidable, can be controlled; and various methods have emerged in dealing with this problem.…”

Section: Introductionmentioning

confidence: 99%

“…Corrosion, though unavoidable, can be controlled; and various methods have emerged in dealing with this problem. Prominent among various methods of reducing its resultant economic, safety, and environmental challenges is corrosion inhibition …”

Section: Introductionmentioning

confidence: 99%

“…The substances that significantly reduce the rate of corrosion of MS in corrosive environments when they are added in small concentration are known as corrosion inhibitors . The inhibition mechanisms are by either oxidation in which protective oxide films are formed or adsorption in which protective barriers are created on the MS surfaces against the corrosive agents . These inhibitors that exist as both organic and inorganic compounds have been reportedly used effectively to protect MS surfaces against corrosive agents …”

Section: Introductionmentioning

confidence: 99%

“…The extensive use of MS in most industries and the problems associated with low corrosion resistance necessitated the urgent and continuous need for protecting MS from the occurrence of corrosion . Most of the reported studies have always employed the use of the weight loss and electrochemical techniques for estimating inhibition efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Gravimetric and quantitative surface morphological studies of Mangifera indica peel extract as a corrosion inhibitor for mild steel in 1 M HCl solution

Ogunleye

Eletta

Arinkoola

et al. 2018

Asia-Pacific J Chem Eng

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Mangifera indica peel extract was evaluated as a corrosion inhibitor for mild steel in 1 M HCl using gravimetric and depth of attack techniques. The extract was characterized using gas chromatography-mass spectrometry and the corrosion film solution by Fourier transform infrared spectroscopy. Scanning electron microscopy, arithmetic mean deviation of the surface profile (R a ), and the maximum height of irregularities (R z ) were used to characterize mild steel coupon surfaces. Effects of temperature, concentration, and time on the corrosion rate of the coupon with and without M. indica peel extract were evaluated. The adsorption of this inhibitor was found to obey the Freundlich model, and thermodynamic parameters were ΔG ads o (−8.39 kJ/ mol), ΔH a o (16.21 kJ/mol), and ΔS a o (−70.41 J/mol·K). Maximum inhibition efficiencies were 95.75% and 95.76% using weight loss and depth of attack methods, respectively.

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Computational Methods of Corrosion Monitoring

Lgaz¹,

Chaouiki²,

Albayati³

et al. 2021

Organic Corrosion Inhibitors

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Understanding corrosion inhibition of mild steel in acid medium by new benzonitriles: Insights from experimental and computational studies

Cited by 103 publications

References 54 publications

Aminotriazole Derivative as Anti‐Corrosion Material for Iraqi Kerosene Tanks: Electrochemical, Computational and the Surface Study

Aminotriazole Derivative as Anti‐Corrosion Material for Iraqi Kerosene Tanks: Electrochemical, Computational and the Surface Study

Gravimetric and quantitative surface morphological studies of Mangifera indica peel extract as a corrosion inhibitor for mild steel in 1 M HCl solution

Computational Methods of Corrosion Monitoring

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