Synergistic inhibition effect of imidazoline derivative and l -cysteine on carbon steel corrosion in a CO 2 -saturated brine solution

Zhang, Chen; Duan, Hanbing; Zhao, Jingmao

doi:10.1016/j.corsci.2016.07.018

Cited by 143 publications

(22 citation statements)

References 50 publications

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“…[25][26][27] The adsorption of pyrazolone compounds is generally over the metal surface forming an adsorption layer that functions as a barrier protecting the metal from aggressive acidic medium. [28][29][30][31] Besides of heteroatoms, aromatic ring systems available in the structures of pyrazolone compounds can also increase adsorptions and consequently enhance inhibition efficiencies of these compounds. 32 However, the aromatic group retards the adsorption process of PY1 compound on metal surface, comparing to PY2 compound.…”

Section: Polarization Measurementsmentioning

confidence: 99%

Mitigation of acid corrosion on carbon steel by novel pyrazolone derivatives

et al. 2017

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Section: Polarization Measurementsmentioning

confidence: 99%

Mitigation of acid corrosion on carbon steel by novel pyrazolone derivatives

et al. 2017

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“…At present, most studies have been based on experimental results to presume the synergistic mechanism of mixed corrosion inhibitors. Many researchers have noticed the synergistic effects among specific substances, between organic and inorganic compounds [23,24,25], surfactants [26,27], or two organics [28,29]. However, the synergistic mechanism of organic compounds is complex, which highly depends on the compound structure.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Study on the Synergistic Inhibition Effect of Pyridine Derivatives and Sulfur-Containing Compounds on the Corrosion of Carbon Steel in CO2-Saturated 3.5 wt.% NaCl Solution

Tang

Zhao

et al. 2018

Molecules

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The corrosion inhibition performance of pyridine derivatives (4-methylpyridine and its quaternary ammonium salts) and sulfur-containing compounds (thiourea and mercaptoethanol) with different molar ratios on carbon steel in CO2-saturated 3.5 wt.% NaCl solution was investigated by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy, and scanning electron microscopy. The synergistic corrosion inhibition mechanism of mixed inhibitors was elucidated by the theoretical calculation and simulation. The molecules of pyridine derivative compounds with a larger volume has priority to adsorb on the metal surface, while the molecules of sulfur-containing compounds with a smaller volume fill in vacancies. A dense adsorption film would be formed when 4-PQ and sulfur-containing compounds are added at a proper mole ratio.

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“…The results showed that imidazoline was seen. [33,34] This indicated that nonionic imidazoline permeated the concrete specimen and had been adsorbed onto the steel rod. XPS and UV-vis spectrophotometry measurements gave consistent results.…”

Section: Migration Behaviours Of Cationic Imidazolinementioning

confidence: 99%

Study of the migration behaviours of imidazoline corrosion inhibitor in concrete using UV–vis spectrophotometry

et al. 2020

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In this study, UV–visible light spectrophotometry was used for the first time to examine the migration behaviours of cationic and nonionic imidazoline corrosion inhibitors in concrete. Imidazoline can react with bromocresol purple resulting in a reduction in absorbance, which can be used to calculate quantitatively imidazoline concentration. The results showed that the migration rate of nonionic imidazoline was faster than that of cationic imidazoline with or without the presence of an electric field, possibly because of the better water solubility of nonionic imidazoline. The electric field could significantly accelerate the migration rate of the cationic and nonionic imidazoline. However, the penetration performance of nonionic imidazoline was much improved compared with that of cationic imidazoline in concrete. From X‐ray photoelectron spectroscopy analysis, the N element could be detected on steel, verifying the migration behaviour of the nonionic imidazoline. This nonionic imidazoline could markedly retard steel corrosion according to potentiodynamic polarization.

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Synergistic inhibition effect of imidazoline derivative and l -cysteine on carbon steel corrosion in a CO 2 -saturated brine solution

Cited by 143 publications

References 50 publications

Mitigation of acid corrosion on carbon steel by novel pyrazolone derivatives

Mitigation of acid corrosion on carbon steel by novel pyrazolone derivatives

Experimental and Theoretical Study on the Synergistic Inhibition Effect of Pyridine Derivatives and Sulfur-Containing Compounds on the Corrosion of Carbon Steel in CO2-Saturated 3.5 wt.% NaCl Solution

Study of the migration behaviours of imidazoline corrosion inhibitor in concrete using UV–vis spectrophotometry

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