Experimental and theoretical study on amino acid derivatives as eco-friendly corrosion inhibitor on mild steel in hydrochloric acid solution

Yadav, Mahendra; Kumar, Sushil; Gope, Laldeep

doi:10.1080/01694243.2014.884754

Cited by 35 publications

(7 citation statements)

References 40 publications

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“…The increase in corrosion rate with temperature is more important in the absence or presence of low concentrations of DMEA. Furthermore, Figure 4 shows that the inhibition efficiency increases slightly as the temperature increases from 298 to 328 K. This can be explained by the fact that the increase in temperature leads to higher desorption of water molecules, thus leaving a larger surface area for the adsorption of inhibitor molecules [17]. The degree of surface coverage (θ) was calculated for different inhibitor concentrations by assuming a direct relationship between the surface coverage (θ) and inhibition efficiency (IE%), such as θ = IE/100.…”

Section: Effect Of Temperaturementioning

confidence: 84%

Inhibitive effect of N,N'-Dimethylaminoethanol on carbon steel corrosion in neutral sodium chloride solution, at different temperatures

et al. 2018

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Abstract. The inhibition of carbon steel corrosion in neutral sodium chloride solution by N,N'-Dimethylaminoethanol (DMEA), at different temperatures, was investigated using weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The results obtained confirm that DMEA is a good organic corrosion inhibitor for carbon steel in 0.5M of NaCl (concentration encountered in the Mediterranean seawater), over the whole range of temperatures studied. The inhibition efficiency (IE%) increases with increasing DMEA concentration; it reaches highest value for a concentration around 0.125 mol.L -1 . Potentiodynamic polarization data show that, the compound studied in this research predominantly act as anodic-type inhibitor. The EIS study reveals that the addition of DMEA decreases the corrosion rate of carbon steel in neutral sodium chloride solution, due to the fact that the inhibitor molecules are strongly adsorbed on the active sites following Langmuir isotherm, thus leading to the formation of a stable protective film on the steel surface which is able to keep the metal/solution interface in a passive state. Furthermore, the values of the activation parameters, i.e. ΔHa and Ea obtained in this study indicate that the adsorption process of DMEA is endothermic and could be mainly attributed to chemisorption, respectively.

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Section: Effect Of Temperaturementioning

confidence: 84%

Inhibitive effect of N,N'-Dimethylaminoethanol on carbon steel corrosion in neutral sodium chloride solution, at different temperatures

et al. 2018

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“…The molecular reactivity of a compound is a complex function of interaction between its HOMO and LUMO levels. According to the Fukui’s theorem, the E HOMO is a direct measure of the capacity of the molecule to donate electrons to an appropriate electron acceptor with empty molecular orbital, that is the higher the E HOMO , the greater is the ability of a molecule to offer electrons (Migahed et al , 2015; Saha et al , 2014; Yadav et al , 2014). On the contrary, the E LUMO signifies the tendency of a molecule to accept charges, that is the lower the E LUMO , the higher is the susceptibly of a compound to accept charges from electron donor (Singh et al , 2018).…”

Section: Resultsmentioning

confidence: 99%

Experimental and computational simulations for the effect of new Arylfuranylnicotinamidine derivatives against degradation of carbon steel in acid solutions

Fouda¹,

Ismail²,

Abou-Shahba³

et al. 2019

MMMS

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Purpose The purpose of this paper is to investigate three Arylfuranylnicotinamidine derivatives against corrosion of carbon steel (C-steel) in 1.0 M HCl by chemical and electrochemical means. The inhibition efficiency (%IE) increases with increasing the dose of inhibitors. The tested compounds exhibited improved performance at elevated temperature, with %IE reaching 93 percent at 21 µM. Tafel polarization method revealed that the tested compounds act as mixed-type inhibitors. The inhibition action was rationalized due to chemical adsorption of inhibition molecules on C-steel surface following Temkin’s isotherm. Surface examination was carried out by AFM and FTIR techniques. Further, theoretical chemical approaches were used to corroborate the experimental findings. Design/methodology/approach Experimental and computational methods were applied to investigate the efficiency of these new compounds. These studies are complemented with spectral studies and surface morphological scan by AFM. The theoretical results indicate good correlation with experimental findings. Findings The tested derivatives are promising corrosion inhibitors for C-steel in the acid environment. The molecular scaffold of this class of compounds can be used to design new highly efficient inhibitors by screening its activity by modeling studies. Originality/value The studied compounds are safe inhibitors and greatly adsorbed on Fe surface. The action of compounds is enhanced with temperature, which means these compounds can be used in higher temperature systems. The new compounds are effective at very low concentration.

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“…One of the possible mechanisms of corrosion in-hibition is the adsorption inhibitor on the metal surface that blocks the corrosion process. Heteroatoms such as oxygen, nitrogen, phosphorus, and sulphur enable the adsorption process because they are considered the adsorption centre [14,15]. In the RHE structure, oxygen and sulphur atoms have free electron pairs and phi electrons.…”

Section: Weight-loss Measurementsmentioning

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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Experimental and theoretical study on amino acid derivatives as eco-friendly corrosion inhibitor on mild steel in hydrochloric acid solution

Cited by 35 publications

References 40 publications

Inhibitive effect of N,N'-Dimethylaminoethanol on carbon steel corrosion in neutral sodium chloride solution, at different temperatures

Inhibitive effect of N,N'-Dimethylaminoethanol on carbon steel corrosion in neutral sodium chloride solution, at different temperatures

Experimental and computational simulations for the effect of new Arylfuranylnicotinamidine derivatives against degradation of carbon steel in acid solutions

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

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