Inhibition of the corrosion of X70 and Q235 steel in CO 2 -saturated brine by imidazoline-based inhibitor

Zhang, Huan‐Huan; Gao, Kewei; Yan, Luchun; Pang, Xiaolu

doi:10.1016/j.jelechem.2017.02.046

Cited by 64 publications

(36 citation statements)

References 50 publications

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“…If the difference (Ψ) is negative, the net charge of the metal is negative, and in this case the adsorption of the cations, protonated inhibitor molecules, on the surface is the reason for preference. Thus, the inhibitor molecules constitue a preservative layer onto the metal surface, and this layer contributes to the corrosion resistance by preventing the metal from directly interacting with the chloride medium [37,38]. In Fig.…”

Section: Eis Lpr and Potentiodynamic Polarization Experimentsmentioning

confidence: 99%

The Inhibitor Effect of (E)-5-[(4-(benzyl(methyl)amino)phenyl)diazenyl]-1,4-dimethyl-1H-1,2,4-triazol-4-ium zinc(II) Chloride, an Industrial Cationic Azo Dye, onto Reducing Acidic Corrosion Rate of Mild Steel

Özkır

Kayakırılmaz

2020

J. Electrochem. Sci. Technol

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This study covers the stages of testing whether the azo dye with chemical name (E)-5-[(4-(benzyl(methyl)amino)phenyl)diazenyl]-1,4-dimethyl-1H-1,2,4-triazol-4-ium zinc (II) chloride (DMT), known as Maxilon Red GRL in the dye industry, can be used as an anticorrosive feasible inhibitory agent, especially in industrial areas other than carpet, yarn and fibre dyeing. These test stages consist of the electrochemical measurement techniques such as potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and linear polarization resistance (LPR) for diverse concentrations and durations. The adsorption of the viewed DMT molecule on the mild steel surface obeyed the Langmuir isotherm. The zero charge potential (PZC) of mild steel was also found to assess the inhibition mechanism in containing DMT solution. The inhibition performance of DMT on the mild steel in a 1.0 M HCl solution was also investigated using methods such as metal microscope, atomic force microscope (AFM) and field emission scanning electron microscope (FE-SEM).

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Section: Eis Lpr and Potentiodynamic Polarization Experimentsmentioning

confidence: 99%

The Inhibitor Effect of (E)-5-[(4-(benzyl(methyl)amino)phenyl)diazenyl]-1,4-dimethyl-1H-1,2,4-triazol-4-ium zinc(II) Chloride, an Industrial Cationic Azo Dye, onto Reducing Acidic Corrosion Rate of Mild Steel

Özkır

Kayakırılmaz

2020

J. Electrochem. Sci. Technol

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“…By the calculation of K ads and the following equation [23], the standard adsorption free energy (Δ G 0 ads ) can also be obtained:sans-serifΔGads0 = −italicRTln(55.5Kads) where, R , T , and the value 55.5 are the universal gas constant (J·mol/K), temperature (K), and molar concentration (mol/L) of water in solution, respectively.…”

Section: Resultsmentioning

confidence: 99%

Effect of Inhibitor on Adsorption Behavior and Mechanism of Micro-Zone Corrosion on Carbon Steel

Wang

Zhang

et al. 2019

Materials

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A new type of inhibitor is studied in this paper. Inhibition efficiency and adsorption behavior of an inhibitor film on the steel surface is tested via the electrochemical method and theoretical calculation to establish the adsorption model. Test results confirm that inhibition efficiency is improved with the addition of an inhibitor, and the inhibitor film is formed firmly by comparing the characteristic peaks of S and N. Moreover, the micro-zone corrosion progress of Fe in 3.5% invasive NaCl-simulated seawater environment is studied. The results further show that corrosion is initiated under the zone without the inhibitor film, while it is prevented under the protection of the film. By the experiments, it is shown that inhibitor can be adsorbed on the surface of steel stably and has excellent protection performance for reinforced rebar, which can be widely used in concrete structure.

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“…The polarisation curves of the N80 steel sheets with different concentrations of corrosion inhibitors were measured [4]. According to the relevant theory of electrochemistry, the corrosion inhibition rate ( η ) of the corrosion process can be calculated by Equation (3) [17]: η=i0−ii0×100, where i 0 and i are the corrosion current densities without and with the inhibitor, respectively.…”

Section: Methodsmentioning

confidence: 99%

Mannich Base as Corrosion Inhibitors for N80 Steel in a CO2 Saturated Solution Containing 3 wt % NaCl

Tang

et al. 2019

Materials

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In this paper, a corrosion inhibitor containing nitrogen atoms and a conjugated π bond was synthesised, and its final product synthesised by the optimal conditions of the orthogonal test results is named multi-mannich base (MBT). The corrosion inhibition effect on the N80 steel sheet of the corrosion inhibitor was evaluated in a CO2 saturated solution containing 3 wt % NaCl; the corrosion rate was 0.0446 mm/a and the corrosion inhibition rate was 90.4%. Through electrochemical and adsorption theory study, MBT is a mixed corrosion inhibitor that mainly shows cathode suppression capacity. The adsorption of MBT on the surface of the steel sheet follows the Langmuir adsorption isotherm; it can be spontaneously adsorbed on the surface of the N80 steel sheet, which has a good corrosion inhibition effect. The surface of the N80 steel sheet was microscopically characterised by atomic force microscope (AFM). It can be seen from the results that the N80 steel sheet with MBT added is significantly different from the blank control group; the surface of the steel sheet is relatively smooth, indicating that MBT forms an effective protective film on the surface of N80 steel, which inhibits the steel sheet.

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Inhibition of the corrosion of X70 and Q235 steel in CO 2 -saturated brine by imidazoline-based inhibitor

Cited by 64 publications

References 50 publications

The Inhibitor Effect of (E)-5-[(4-(benzyl(methyl)amino)phenyl)diazenyl]-1,4-dimethyl-1H-1,2,4-triazol-4-ium zinc(II) Chloride, an Industrial Cationic Azo Dye, onto Reducing Acidic Corrosion Rate of Mild Steel

The Inhibitor Effect of (E)-5-[(4-(benzyl(methyl)amino)phenyl)diazenyl]-1,4-dimethyl-1H-1,2,4-triazol-4-ium zinc(II) Chloride, an Industrial Cationic Azo Dye, onto Reducing Acidic Corrosion Rate of Mild Steel

Effect of Inhibitor on Adsorption Behavior and Mechanism of Micro-Zone Corrosion on Carbon Steel

Mannich Base as Corrosion Inhibitors for N80 Steel in a CO2 Saturated Solution Containing 3 wt % NaCl

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