Assessment of corrosion inhibitive behavior of 2-aminothiophenol derivatives on carbon steel in 1M HCl

Kabel, Khalid I.; Zakaria, Khaled; Abbas, Mohamed A.; Khamis, E.A.

doi:10.1016/j.jiec.2014.07.042

Cited by 30 publications

(12 citation statements)

References 49 publications

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“…The inhibition process of 4ATF was suggested as a result of a blocking mechanism of the actives sites on surface, which may happen by chemical and/or physical adsorption. Similar results for 2-aminothiophenol derivatives on carbon steel in 1 M HCl were reported in the study of Kabel et al (2015). They investigated the inhibition effect of three newly synthesized 2-aminothiophenol derivatives as N-(2-carboxyethylthiophenyl)-β-Alanine (I), ethoxylated β-Alanine N-[o-[(2-carboxyethyl)thio]phenyl] (II) and ethoxylated β-Alanine N-[o-[(2-amidoethyl)thio]phenyl] (III) and they declared that 0.242, 0.208 and 0.098 mA cm −2 corrosion current density values for 10 mM inhibitor (I, II and III) containing solutions, respectively.…”

Section: Resultssupporting

confidence: 88%

“…By and large, adsorption of inhibitor molecules on the MS surface depends on: the surface charge of the metal and the nature, the adsorption mode, type of electrolyte solution and chemical structure (Ismayilov et al , 2012; Abbasov et al , 2013). The inhibition efficiency of inhibitors increases in the order of: O < N < S < P (Pardave et al , 2012; Salarvand et al , 2017; Kabel et al , 2015; Ebrahimzadeh et al , 2015).…”

Section: Introductionmentioning

confidence: 99%

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Theoretical and experimental investigations on corrosion control of mild steel in hydrochloric acid solution by 4-aminothiophenol

Yıldız

Mert

2019

ACMM

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Purpose This paper aims to study inhibitory effect of 4-aminothiophenol on the corrosion of mild steel (MS) in 0.5 M HCl. Design/methodology/approach In this study, electrochemical experiments, quantum chemical calculations, potentiodynamic measurements, linear polarization resistance and scanning electron microscopy were used. Findings The experimental results suggest that this compound is efficient corrosion inhibitor and the inhibition efficiencies increase with increasing their (from 0.5 to 10.0 mM.) concentrations. This reveals that inhibitive actions of inhibitors were mainly due to adsorption on mild steel surface. The adsorption of these inhibitors was found to obey Langmuir adsorption model. The computed quantum chemical features show good correlation with empirical inhibition efficiencies. Originality/value The 4-aminothiophenol is suitable inhibitor for application in closed-circuit systems against corrosion. The study is original and has great impact in industrial area. The obtained theoretical results have been adapted with the experimental data.

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Section: Resultssupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental investigations on corrosion control of mild steel in hydrochloric acid solution by 4-aminothiophenol

Yıldız

Mert

2019

ACMM

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“…Increase in the R ct value with inhibitors confirms the inhibiting effect of I 1 and I 2 . As R ct value increases, the CPE value was decreased due to the increase in surface coverage of the inhibitors reducing the dissolution of the metal surface . At the same time, increase in concentration of inhibitors, decrease C dl value and it could be concluded that the double layer is formed between the charged mild steel surface and solution and it acts as a capacitor .…”

Section: Resultssupporting

confidence: 84%

Adsorption Effect of Five‐Membered and Six‐Membered Alicyclic Amine‐Derived Mannich Bases on Mild Steel Surface in 1.0 M HCl

Nesaian

Prabhu

2017

ChemistrySelect

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Two new Mannich bases N‐(3‐(benzo[d][1, 3]dioxol‐5‐yl(pyrrolidin‐1‐yl)methyl)‐4‐hydroxyphenyl)acetamide (I1) and N‐(3‐(benzo[d][1, 3]dioxol‐5‐yl(morpholino)methyl)‐4‐hydroxyphenyl) acetamide (I2) are synthesised and evaluated their corrosion inhibition behaviour through weight loss measurements, electrochemical, quantum chemical and surface analytical studies. Tafel studies revealed that the inhibitors are found to be mixed type. EIS studies confirmed that corrosion process is controlled through charge transfer process. The adsorption of inhibitors I1 and I2 follows Langmuir adsorption isotherm and ΔGads values suggest that both physorption and chemisorption are possible. Surface studies show that in the presence of inhibitors, smoother surface is obtained compared to blank. I1 has higher inhibition efficiency (50 μM −98%) than I2 (50 μM −94%) which is correlated with the theoretical studies.

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“…The important related electrochemical parameters, such as corrosion current density (I corr , mA/cm 2 ), anodic Tafel slope (b a , mV/dec), and cathodic Tafel slope (b c , mV/dec) were obtained by extrapolation of Tafel lines at the corrosion potential (E corr , mV) and are presented in Table 6. The surface coverage (O -) and inhibition efficiency (g Tafel , %) were calculated from the following equations [55]: …”

Section: Polarization Curvesmentioning

confidence: 99%

New Schiff base cationic surfactants as corrosion inhibitors for carbon steel in acidic medium: weight loss, electrochemical and SEM characterization techniques

2015

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Two new Schiff base cationic surfactants were synthesized and their chemical structures confirmed using FTIR spectroscopy. The tensioactive and thermodynamic characteristics of their solutions were determined using surface tension/log concentration plots. The protection performance of the synthesized compounds against carbon steel corrosion in 1 M HCl solution was evaluated using weight loss and electrochemical techniques. The compounds were found to be excellent corrosion inhibitors, and their efficiency increased with increasing inhibitor concentration. The mode of adsorption obeyed the Langmuir adsorption isotherm. Polarization curves showed that the two compounds were mixed-type inhibitors. The temperature dependence of the corrosion rate in the absence and presence of these compounds was studied in a temperature range of 303 to 333 K using the weight loss data. Activation parameters E a , DH a o , and DS a o were determined and discussed. In addition, the presence of a protective film on the carbon steel surface was confirmed using scanning electron microscopy (SEM).

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Assessment of corrosion inhibitive behavior of 2-aminothiophenol derivatives on carbon steel in 1M HCl

Cited by 30 publications

References 49 publications

Theoretical and experimental investigations on corrosion control of mild steel in hydrochloric acid solution by 4-aminothiophenol

Theoretical and experimental investigations on corrosion control of mild steel in hydrochloric acid solution by 4-aminothiophenol

Adsorption Effect of Five‐Membered and Six‐Membered Alicyclic Amine‐Derived Mannich Bases on Mild Steel Surface in 1.0 M HCl

New Schiff base cationic surfactants as corrosion inhibitors for carbon steel in acidic medium: weight loss, electrochemical and SEM characterization techniques

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