Inhibition effect of novel nonionic surfactants on the corrosion of carbon steel in acidic medium

Hegazy, M.A.; Zaky, Mohamed F.

doi:10.1016/j.corsci.2009.11.043

Cited by 100 publications

(28 citation statements)

References 64 publications

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“…This process is considered to represent an interface inhibition according to Fischer’s classification. The surfactant inhibitor has many advantages, such as a high inhibition efficiency, low price, low toxicity, and easy production [14,15,16]. The problem of finding an inhibitor that has little or no impact on the environment has recently motivated numerous studies [17].…”

Section: Introductionmentioning

confidence: 99%

Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin

et al. 2014

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A new coumarin derivative, N,N′-((2E,2′E)-2,2′-(1,4-phenylenebis(methanylylidene))bis(hydrazinecarbonothioyl))bis(2-oxo-2H-chromene-3-carboxamide) PMBH, was synthesized and its chemical structure was elucidated and confirmed using spectroscopic techniques (Infrared spectroscopy IR, Proton nuclear magnetic resonance, 1H-NMR and carbon-13 nuclear magnetic resonance 13C-NMR). The corrosion inhibition effect of PMBH on mild steel in 1.0 M HCl was investigated using corrosion potential (ECORR), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and electrochemical frequency modulation (EFM) measurements. The obtained results indicated that PMBH has promising inhibitive effects on the corrosion of mild steel in 1.0 M HCl across all of the conditions examined. Scanning electron microscopy (SEM) was used to investigate the morphology of the mild steel before and after immersion in 1.0 M HCl solution containing 0.5 mM of PMBH. Surface analysis revealed improvement of corrosion resistance in presence of PMBH.

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Section: Introductionmentioning

confidence: 99%

Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin

et al. 2014

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“…Each experiment was repeated at least three times to check the reproducibility. Potentiodynamic polarization measurements were obtained by changing the electrode potential automatically from -1000 to -200 mV versus SCE at open circuit potential with a scan rate 2 mV s -1 at 25°C [24].…”

Section: Potentiodynamic Polarization Measurementmentioning

confidence: 99%

Three gemini cationic surfactants as biodegradable corrosion inhibitors for carbon steel in HCl solution

2015

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Three gemini cationic surfactants with different hydrophobic spacer chain lengths were synthesized and characterized. The inhibition effect of N,on the corrosion of carbon steel in 1.0 M HCl solution at 25-60°C was studied by weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy. The results show that the synthesized inhibitors are effective inhibitors even at very low concentration, and the adsorption on the carbon steel surface obeys the Langmuir adsorption isotherm. Potentiodynamic polarization curves reveal that the synthesized inhibitors behave as a mixed-type inhibitor. Adsorption of used inhibitors led to a reduction in the double layer capacitance and an increase in the charge transfer resistance. Thermodynamic parameters have been obtained by adsorption theory. Surface activity and corrosion inhibition relationship were discussed. The biodegradability of the synthesized surfactants showed their readily biodegradation in the open environment and were considered as environmentally friendly corrosion inhibitors.

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“…In these cases, the plots of C/θ versus C yield straight lines, clearly proving that the adsorption of the used inhibitors on the mild steel surface obeys the Langmuir isotherm Figure 12. The standard free energy of adsorption (∆G 0 ads ) at different temperatures was calculated from the following equation [34,[37][38]:…”

Section: Adsorption Isothermmentioning

confidence: 99%

Corrosion inhibition of mild steel in acidic media using newly synthesized heterocyclic organic molecules: Correlation between inhibition efficiency and chemical structure

Ouici¹,

Benali²,

Guendouzi³

2015

AIP Conference Proceedings

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Articles you may be interested inAdsorption properties and inhibition of mild steel corrosion in 15% HCl by 3-((1H-indol-3-yl)(4methoxyphenyl)methyl)-1H-indole:electrochemical study AIP Conf.Correlation between magnetic spin structure and the three-dimensional geometry in chemically synthesized nanoscale magnetite rings Abstract. The corrosion inhibition of mild steel in 5% HCl solutions by some new synthesized organic compounds namely 3-(2-methoxyphenyl) 5-mercapto-1. 2. 4-triazole (2-MMT), 3-(3methoxyphenyl) 5-mercapto-1. 2. 4-triazole (3-MMT) and 3-(2-hydroxyphenyl) 5-mercapto-1. 2. 4-triazole (2-HMT) was investigated using weight loss and potentiostatic polarization techniques. These measurements reveal that the inhibition efficiency obtained by these compounds increased by increasing their concentration. The inhibition efficiency follows the order 2-MMT >3-MMT >2-HMT. Polarization studies show that these compounds are of the mixed type but dominantly act as a cathodic inhibitors for mild steel in 5% HCl solutions. These inhibitors function through adsorption following Langmuir isotherm. Activation energy and Gibbs free energy for adsorption of inhibitors are calculated. Molecular modeling has been conducted to correlate the corrosion inhibition properties with the calculated quantum chemical parameters.

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Inhibition effect of novel nonionic surfactants on the corrosion of carbon steel in acidic medium

Cited by 100 publications

References 64 publications

Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin

Inhibition of Mild Steel Corrosion in Hydrochloric Acid Solution by New Coumarin

Three gemini cationic surfactants as biodegradable corrosion inhibitors for carbon steel in HCl solution

Corrosion inhibition of mild steel in acidic media using newly synthesized heterocyclic organic molecules: Correlation between inhibition efficiency and chemical structure

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