Inhibitive Effect of Date Extract on the Corrosion of Carbon Steel in Acidic Media

Moussaoui, Naima; Zerouali, D.; Bettahar, Noureddine

doi:10.4067/s0717-97072016000300002

Cited by 5 publications

(9 citation statements)

References 12 publications

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“…When the tests are conducted in the presence of 250, 500 or 750 ppm of FOD, the corrosion potential E corr shifted rapidly toward less negative values during the first seconds, then continued to head to more positive direction until stabilization. This shift suggests that FOD affected the anodic reaction [ 25 ].…”

Section: Resultsmentioning

confidence: 99%

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Rehioui

Abbout

Benzidia

et al. 2021

Heliyon

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This study examines the development of a new green and eco-friendly formulation derived from Opuntia dillenii seed oil (labeled as FOD) and its application as a corrosion inhibitor to protect iron which is subject to corrosion phenomena that become important especially in acidic environments as acid rain. Physicochemical properties and fatty acid analysis of Opuntia dillenii seed oil were performed and they demonstrated that the oil is a major source of unsaturated fatty acids, in particular linoleic acid, with a percentage of 73.388%. Corrosion inhibition effect of FOD was studied by gravimetric methods, electrochemical measurements, and scanning electron microscopy coupled with elemental analysis (SEM/EDX). Obtained results confirmed that FOD behaves as a good mixed corrosion inhibitor with predominant anodic activity. Inhibition efficiency of FOD is more important when the concentration of FOD and the immersion time increase, reaching values up to 99%. FOD forms a barrier layer on the surface of the iron, and thereby minimizes the contact area between the metal surface and the corrosive solution. The adsorption behavior of FOD on iron surface obeys Langmuir adsorption isotherm with chemisorption and physisorption mechanism.

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Section: Resultsmentioning

confidence: 99%

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Rehioui

Abbout

Benzidia

et al. 2021

Heliyon

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“…However, both the polarization curves show parallel behavior, and therefore mechanisms of corrosion are not influenced by the inhibitor molecules. Both metallic dissolution and hydrogen evolution reactions are consequently retarded by the adsorbed phytochemical on the metal surfaces [28]. The inhibition action of 1000 ppm of JC extract is found to be highly effective in both cases.…”

Section: Open Circuit Potential (Ocp)mentioning

confidence: 96%

“…A higher concentration attains a steady-state OCP value faster compared to a lower concentration of the extract. The shift of OCP to positive direction with the addition of JC extract hints to the adsorption of inhibitor molecules on the MS surface, forming a barrier for the aggressive acid solution [28]. The OCP for 1000 ppm of JC extract is -0.444 V after 24 h of immersion.…”

Section: Open Circuit Potential (Ocp)mentioning

confidence: 98%

“…The results suggest that an increase in extract concentration increases the number of inhibitor molecules available for the adsorption onto the MS surface. It results in decreasing the surface area available for the direct acid attack on the metal surface [28]. The inhibition efficiency of 1000 ppm concentration of JC extract after 6 h immersion is approximately 82.85%.…”

Section: Effect Of Immersion Timementioning

confidence: 99%

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Study of Jatropha Curcas Extract as a Corrosion Inhibitor in Acidic Medium on Mild Steel by Weight Loss and Potentiodynamic Methods

Gupta

Kafle

Das

et al. 2020

J. Nepal Chem. Soc.

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The corrosion inhibition properties of methanol extract of Jatropha curcas (JC) were investigated for mild steel (MS) in acidic medium using weight loss and potentiodynamic methods. Corrosion inhibition of MS in 1MH2SO4 was studied in the absence and presence of various concentrations of the methanolic extract of Jatropha curcas barks. The results showed an increase in corrosion inhibition with increasing concentration of the extract. The inhibition efficiency of 1000 ppm JC extract from the weight loss and potentiodynamic polarization methods were approximately 92.0% after 24 hours immersion in the acidic solution. Open circuit potential (OCP) and potentiodynamic polarization measurements showed that the JC extract acts as a mixed-type inhibitor.

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“…Generally the organic compounds with hetero atoms such as N, S, O, and P are observed to act as very useful corrosion inhibitors [22][23][24]. The performance of these organic compounds is affected by electron density available around the hetero atoms, amount of available active centers for adsorption and their charge density, dimension of molecular, adsorption type, and creation of metallic complexes [25,26].…”

Section: Introductionmentioning

confidence: 99%

Application of Quantum Chemical, Noise and the Electrochemical Frequency Modulation to Investigate the Adsorption and Corrosion Inhibition Behavior of 2-Amino-6-Hydroxybenzothiazole for Steel Api X80 in Acidic Solution

Danaee

Nikparsa

2020

J. Chil. Chem. Soc.

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Different theoretical, electrochemical and surface techniques were applied to study the corrosion inhibition effects of 2-Amino-6-hydroxybenzothiazole in 5% HCl solution. The density functional theory was carried out and quantum chemical factors like the energy gap, energy of highest occupied molecular orbital, the energy of lowest unoccupied molecular orbital, the fraction of electron transferred, and Mulliken charges have been calculated. In addition, according to quantum calculation, S atom in 2-Amino-6-hydroxybenzothiazole indicated more tendency for electrophilic attack in adsorption. The main reason for high inhibition efficiencies in very low concentrations is the planar and simplicity of inhibitor structure which leads to increasing the efficiency of adsorption by functional group especially sulfur. Electrochemical frequency modulation and potentiodynamic polarization indicated that this material has excellent inhibiting features in very low concentrations. The influence of DC trend on the explanation of electrochemical noise data was evaluated by polynomial fitting and the optimum polynomial order m=4 was obtained. Noise resistance and the inhibition efficiency was calculated and compared in different methods. The theory of shot noise in frequency domain was used to obtain the electrochemical event charge. The corroded surface of steel in the absence and existence of thiazole compound was studied by Atomic force microscopy.

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Inhibitive Effect of Date Extract on the Corrosion of Carbon Steel in Acidic Media

Cited by 5 publications

References 12 publications

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Corrosion inhibiting effect of a green formulation based on Opuntia Dillenii seed oil for iron in acid rain solution

Study of Jatropha Curcas Extract as a Corrosion Inhibitor in Acidic Medium on Mild Steel by Weight Loss and Potentiodynamic Methods

Application of Quantum Chemical, Noise and the Electrochemical Frequency Modulation to Investigate the Adsorption and Corrosion Inhibition Behavior of 2-Amino-6-Hydroxybenzothiazole for Steel Api X80 in Acidic Solution

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