Electrochemical behaviour of carbon steel in acid chloride solution in the presence of dodecyl cysteine hydrochloride self-assembled on gold nanoparticles

Migahed, M.A.; Azzam, E. M. S.; Morsy, S.M.

doi:10.1016/j.corsci.2009.04.010

Cited by 62 publications

(26 citation statements)

References 42 publications

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“…In this case the plot of (C/Θ) versus (C ) of Modazar at various temperatures gave straight lines with correlation coefficients in the range 0.99-0.98, intercept of (1/K ads ) and with slope approximately equal to unity were obtained. The mathematical expression of Langmuir is given as follows (39).…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Modazar as promising corrosion inhibitor of carbon steel in hydrochloric acid solution

Fouda

Elewady

Ali

2017

Green Chemistry Letters and Reviews

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Modazar drug was tested as corrosion inhibitor for carbon steel in 1 M HCl solution using chemical (weight loss and gasometric) and electrochemical (open {circdeg;}uit potential, potentiodynamic polarization, electrochemical frequency modulation and electrochemical impedance spectroscopy) techniques. The results showed that the inhibitory efficiency increased with the increase in drug concentration reaching a maximum value of 92.3% at 300 ppm while it decreases with increasing the temperature. Polarization curves showed that Modazar drug is a mixed type inhibitor but the cathode is more polarized than the anode. The drug was adsorbed physically on the C-steel surface obeying Langmuir adsorption isotherm. The morphology of the surface of the specimens was analyzed using atomic force microscopy, energy dispersion spectroscopy and scanning electron microscopy. The results obtained from chemical and electrochemical techniques are in good agreement.ARTICLE HISTORY

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Section: Adsorption Isothermsmentioning

confidence: 99%

Modazar as promising corrosion inhibitor of carbon steel in hydrochloric acid solution

Fouda

Elewady

Ali

2017

Green Chemistry Letters and Reviews

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“…Langmuir adsorption isotherm was found to fit the experimental data. The mathematical expression of Langmuir is given as following [38]:…”

Section: -Chemisorption -Which Involves Charge Sharingmentioning

confidence: 99%

Egy-dronate drug as promising corrosion inhibitor of C-steel in aqueous medium

Fouda¹,

Ali²

2018

Zaštita materijala

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The effect of Egydronate as the corrosion inhibition of Carbon steel (CS) in 1 M HCl was studied by weight loss (WL), hydrogen evaluation (HE), Open circuit potential (EOCP), potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS), electron frequency modulation (EFM) and surface examination of the specimens by atomic force microscopy (AFM), energy dispersion spectroscopy (EDS) and scanning electron microscopy (SEM). The results of the inhibition efficiency (IE %) increase with increasing the concentration of inhibitor but decreases with raising the temperature. The adsorption of Egy -dronate on the Csteel surface obeys with Langmuir adsorption isotherm. The adsorption process is spontaneous, endothermic and physical adsorption. The polarization curves show that Egy -dronate is a mixedtype inhibitor tends to anodically more. The results obtained from chemical and electrochemical techniques are a good agreement quality and gives the same behavior of the adsorption of Egydronate drug. All techniques have proved the thin film formation adsorbed on the metal surface as a protective coated to prevent the dissolution metal in the corrosive medium, due to electrostatic attraction between unshared electrons of inhibitor molecules and the positive sites on the metal surface.

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“…The (S * , H * ) of activation are determinate from the theory of transition state by applied the following relation [38].…”

Section: Temperature Effectmentioning

confidence: 99%

Electrochemical Study of Candesartan Drug as Corrosion Inhibitor for Carbon Steel in Acid Medium

Ali¹

2018

JAEC

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Candesartan drug was utilized as an inhibitor for carbon steel (CS) corrosion in 1 M HCl by utilizing many techniques: weight loss (WL), electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PP) techniques. WL is investigated at various temperatures between (25-45 °C) but all electrochemical studies at room temperature. The inhibition efficiency (% IE) increment with expanding doses of the Candesartan drug. The activation and the adsorption parameters were investigated and calculated by the effect of temperature on the inhibition of corrosion. The adsorption of the Candesartanon CS surface was found to obey with Langmuir adsorption model. The morphology of inhibited CS was analyzed by the energy dispersive Xray spectroscope (EDX), atomic force microscopy (AFM) and scanning electron microscope (SEM). All techniques were utilized to examine the corrosion inhibition of the drug and confirm the formation thin film adsorbed on the metal surface and prevent the corrosion process. Polarization data revealed that this drug affect both anodic and cathodic reactions.

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Electrochemical behaviour of carbon steel in acid chloride solution in the presence of dodecyl cysteine hydrochloride self-assembled on gold nanoparticles

Cited by 62 publications

References 42 publications

Modazar as promising corrosion inhibitor of carbon steel in hydrochloric acid solution

Modazar as promising corrosion inhibitor of carbon steel in hydrochloric acid solution

Egy-dronate drug as promising corrosion inhibitor of C-steel in aqueous medium

Electrochemical Study of Candesartan Drug as Corrosion Inhibitor for Carbon Steel in Acid Medium

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