Modeling of synergistic halide additives' effect on the corrosion of aluminum in basic solution containing dye

Nemr, Ahmed El; Moneer, Abeer A.; Khaled, Azza; El-Sikaily, Amany; El‐Said, Ghada F.

doi:10.1016/j.matchemphys.2013.12.034

Cited by 26 publications

(12 citation statements)

References 47 publications

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“…If the value of DG 0 ads is -40 kJ/mol or more negative, it indicates the transfer of electron from the inhibitor to the metal surface forming a coordinate bond between them. DG 0 ads values are lower than above, for example, -20 kJ/mol, leading to a weak electrostatic attraction between the charged inhibitor and the charged metal surface in the corrosion medium [35,36].…”

Section: Adsorption Studiesmentioning

confidence: 90%

Surface Interaction and Corrosion Inhibition of Mild Steel in Hydrochloric Acid Using Pyoverdine, an Eco-Friendly Bio-molecule

et al. 2016

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Pyoverdine, an yellowish-green, water-soluble fluorescent siderophore, was predominantly produced by the species of Pseudomonas, P. aeruginosa, is used as a corrosion inhibitor for mild steel in 0.5 M HCl, and its efficiency was studied by gravimetric method, electrochemical impedance spectroscopy and polarization techniques at temperatures of 303, 308 and 313 K. Pyoverdine being a strong iron chelator shows excellent inhibition efficiency at all these temperature regions. The adsorption of pyoverdine on mild steel surface increases the charge transfer resistance and activation energy of metal corrosion. 97.55 % of protection efficiency was reported for 10 ppm inhibitor at 303 K; the bacterial biofilm can protect the metal even at 308 and 313 K, and efficiency reduced to only 73 and 68 %. Pyoverdine inhibited both anodic and cathodic reactions and hence worked as a mixed type inhibitor. The results of electrochemical studies also support this observation. The surface morphology of mild steel was examined with scanning electron microscopy and atomic force microscopy. The inhibitor got adsorbed on the metal surface, and the process of adsorption follows Langmuir and Temkin isotherms.

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Section: Adsorption Studiesmentioning

confidence: 90%

Surface Interaction and Corrosion Inhibition of Mild Steel in Hydrochloric Acid Using Pyoverdine, an Eco-Friendly Bio-molecule

et al. 2016

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“…The free energy of adsorption (ΔGºads) values were obtained from the intercept of Figure 1. The equation is as follows [19]: (7) where R is the gas constant, T is the absolute temperature and ∆Gºads is the standard free energy of adsorption (kJ/mol).…”

Section: Kinetics and Thermodynamic Studiesmentioning

confidence: 99%

“…acid cleaning, acid descaling, acid pickling and oil-well acidizing), which requires corrosion inhibitors that aim to withstand corrosion on metal materials [2]. The use of biocorrosion inhibitors continues to be developed bined with other inhibitors for mild steel in acidic solutions [6][7][8]. The addition of halide ions to sulphuric acid solutions containing organic inhibitors has been found to stabilize organic cation adsorption, which leads to an increase in inhibition efficiency.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Corrosion Inhibition Effect of Rice Husk Extract and KI for Mild Steel in H2SO4 Solution

Pramudita

Sukirno

Nasikin

2019

Bull. Chem. React. Eng. Catal.

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The corrosion inhibition of rice husk extract for bio-corrosion in mild steel in 1 M of H2SO4 solution and the effect of adding potassium iodide were investigated using the weight-loss method with a variable solution temperature and various bio-inhibitor concentrations. The addition of potassium iodide can significantly increase the efficiency of rice husk extract. The highest efficiency is 95.89% at 1,250 ppm of inhibitor concentration at a temperature of 313 K. The inhibition efficiency of rice husk extract is synergistically increased with the addition of potassium iodide. The characteristics of the adsorption inhibitors were assessed using the Langmuir isotherm adsorption approach at all studied concentrations and temperatures. The synergy of rice husk extract and potassium iodide was examined using thermodynamic and kinetic parameters.because it has the advantage of being biodegradable and does not contain heavy metals or other toxic compounds.Rice husk is considered one of the most important agricultural wastes, and a great amount of research has been conducted on its use in various fields. It has a high silica content, which is a good advantage, especially for bio-corrosion inhibitors [3]. Rice husk extract (RHE) has the potential to be developed into a bio-corrosion inhibitor [4,5] and contains amorphous silica, which is safe and environmentally friendly.Recently, researchers have been paying more attention to mixed inhibitors because of their synergistic effects. The effect of the inhibitor mixture is better than the single inhibitor effect. Further, several authors have reported that halide (Iˉ) ions, which are known to stimulate and inhibit corrosion in acid solutions, can provide their own effective protection or can be com-

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“…Frequently, many organic compounds containing different types of heteroatoms are tapped to prevent the corrosion of mild steel, can form covalent bonds with metals, and then adsorb onto the metal surface [6][7][8]. According to the literature findings of many researchers, some heterocyclic organic compounds which contain nitrogen, sulphur, and oxygen in their molecular structure are active as corrosion inhibitors [9][10][11][12][13][14]. The inhibitors should be exceedingly influential even at very low concentrations.…”

Section: Introductionmentioning

confidence: 99%

“…The corrosion preventing properties of such dyes are not focused on a uniform process. In other words, it depends primarily on the metal, the aggressive environment, the structure, and concentration of the organic inhibitor compound [11,17]. Recently, Pareek and coworkers have found that a dye, namely, "4-amino-3-(phenyldiazenyl)benzo [4,5]imidazo[1,2-a]pyrimidin-2(1H)one", can be used as an inhibitor in inhibiting corrosion of copper in 3.5 wt.% (by weight) NaCl solution [18].…”

Section: Introductionmentioning

confidence: 99%

The Electrochemical Variation of a Kind of Protein Staining and Food Dye as a New Corrosion Inhibitor on Mild Steel in Acidic Medium

Özkır

2019

International Journal of Electrochemistry

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In this study, the relevance of a food dye, namely, Fast Green-FCF (FG-FCF), was surveyed as a new inhibitor for mild steel in HCl solution. This effect was specified by electrochemical impedance spectroscopy (EIS), one of the most widely used measurement techniques. As a result of the increment of the inhibitor concentration, it was seen that the values of polarization resistance increased and covered the metal surface of FG-FCF like a blanket. Tests endorse that the FG-FCF is chemically adsorbed on mild steel surface, according to the Langmuir isotherm. With surface characteristic analyses, such as field emission scanning electron microscope (FESEM) and atomic force microscope (AFM), it was further determined that the metal surface in HCl of FG-FCF was protected. By applying the hydrogen gas evolution technique, FG-FCF has been proven to provide the lowest surface area with all inhibited solutions from the blank due to its strong adsorption to the metal surface. Finally, it has been clarified that FG-FCF can be practically used as a good corrosion inhibitor for mild steel with the supported results.

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Modeling of synergistic halide additives' effect on the corrosion of aluminum in basic solution containing dye

Cited by 26 publications

References 47 publications

Surface Interaction and Corrosion Inhibition of Mild Steel in Hydrochloric Acid Using Pyoverdine, an Eco-Friendly Bio-molecule

Surface Interaction and Corrosion Inhibition of Mild Steel in Hydrochloric Acid Using Pyoverdine, an Eco-Friendly Bio-molecule

Synergistic Corrosion Inhibition Effect of Rice Husk Extract and KI for Mild Steel in H2SO4 Solution

The Electrochemical Variation of a Kind of Protein Staining and Food Dye as a New Corrosion Inhibitor on Mild Steel in Acidic Medium

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