Corrosion inhibition of aluminum in 0.5 M HCl solutions containing phenyl sulfonylacetophenoneazo derivatives

Shalabi, K.; Abdallah, Y.M.; Fouda, A. S.

doi:10.1007/s11164-014-1561-5

Cited by 43 publications

(20 citation statements)

References 56 publications

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“…The presence of depressed semicircle in Nyquist plot across the studied frequency range indicates that a charge transfer process mainly controls the corrosion of aluminum. In other literature, similar plots have been reported for the corrosion of aluminum alloys in HCl solutions [20]. The inductive loop is generally attributed to the relaxation process in the oxide film covered on metal surface [26].…”

Section: Electrochemical Impedance Spectroscopy (Eis)supporting

confidence: 81%

“…All test plates of AA5052 were ultrasonically degreased in the acetone for 15 min, and treated by the immersion in alkaline solution (15 g Na2CO3 + 15 g Na2PO4 per liter) at 60 °C for the debinding process [20]. After that, the aluminum alloy specimens were washed thoroughly with distilled water and dried with nitrogen.…”

Section: Materials and Sample Preparationmentioning

confidence: 99%

“…Theoretical calculations were performed using DFT (density functional theory) at B3LYP/6-31G (d, p) basis set level with Gaussian 03 program [20]. Complete geometrical optimizations of DAN and DBN molecules structure, the highest occupied molecular orbital (HOMO), and the lowest unoccupied molecular orbital (LUMO) were obtained by using Gauss View.…”

Section: Quantum Chemical Calculationmentioning

confidence: 99%

“…The decrease in inhibition efficiency and increase in corrosion rate was observed with increase in temperature from 30 to 50 °C in the presence of 1 mM inhibitor, which may be attributed to the fact that the adsorption processes were spontaneous and irreversible with heat evolution, and the increase in temperature was not beneficial to the adsorption. The influence may also come from the weakening of electrostatic adsorption on the metal surface and the aggravation of desorption of the inhibitor molecule from the metal surface when the temperature increases [20][21][22]. In addition, the metallic corrosion in acidic environments is usually accompanied by the release of H2, and the adsorption process of the inhibitor could be affected by the agitation caused by the acceleration of H2 evolution rates at higher temperature and lead to the decrease of corresponding inhibition efficiency [23].…”

Section: Effect Of Concentrationmentioning

confidence: 99%

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The Corrosion Inhibition Effect of Triazinedithiol Inhibitors for Aluminum Alloy in a 1 M HCl Solution

Zhao

Tang

Dang

et al. 2017

Metals

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Abstract:Two environmental friendly triazinedithiol inhibitors 6-diallylamino-1,3,5-triazine-2,4-dithiol monosodium (DAN) and 6-dibutylamino-1,3,5-triazine-2,4-dithiol monosodium (DBN) were synthesized and their corrosion inhibition for aluminum alloy in a 1 M HCl solution was studied using weight loss methods, electrochemical measurements, and scanning electron microscopy (SEM) techniques. The inhibition efficiency of both DAN and DBN improved with increases in inhibitor concentration but decreased with increases in temperature. Results from potentiodynamic polarization and EIS showed that the corrosion inhibition efficiency of DAN and DBN was excellent. The adsorption of inhibitors on the aluminum alloy surface followed Langmuir adsorption isotherms. Morphology observation revealed that the aluminum alloy was greatly protected by these triazinedithiol inhibitors. Further, density functional theory (DFT) was used to investigate the relationships between molecular structural and inhibition efficiency.

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Section: Electrochemical Impedance Spectroscopy (Eis)supporting

confidence: 81%

Section: Materials and Sample Preparationmentioning

confidence: 99%

Section: Quantum Chemical Calculationmentioning

confidence: 99%

Section: Effect Of Concentrationmentioning

confidence: 99%

See 2 more Smart Citations

The Corrosion Inhibition Effect of Triazinedithiol Inhibitors for Aluminum Alloy in a 1 M HCl Solution

Zhao

Tang

Dang

et al. 2017

Metals

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“…The inhibition efficiencies increase by increasing CSE concentrations. The causality factors in Table 8 are very close to the theoretical values, which, according to the EFM theory (40,41), should guarantee the validity of Tafel slopes and corrosion current densities. Inhibition efficiency (IE EFM %) is depicted in Table 8.…”

Section: Efm Measurementssupporting

confidence: 71%

Ceratonia siliqua extractas a green corrosion inhibitor for copper and brass in nitric acid solutions

Fouda

Shalabi

Idress

2015

Green Chemistry Letters and Reviews

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The influence of extract of ceratonia siliqua extract on the corrosion of copper and brass in aqueous 1 M nitric acid was examined by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy and electrochemical frequency modulation techniques. The surface morphology was analyzed using scanning electron microscope and energy dispersive X-ray techniques. Potentiodynamic polarization curves indicated that the plant extract behaves as cathodic inhibitor. The results indicate that the extract solution of the plant could serve as an effective inhibitor for the corrosion of copper and brass in nitric acid media. As temperature increases, percentage of inhibition decreases. The degree of surface coverage of the adsorbed inhibitor was determined by weight-loss technique, and it was found that the results obeyed the Langmuir adsorption isotherm. ARTICLE HISTORY

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Corrosion inhibition of LY12CZ aluminum alloy by 3‐pyridyl‐4‐amino‐1,2,4‐triazole‐5‐thiol and its cerium nitrate compound

Liu

Sun

2018

Materials & Corrosion

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The inhibition effect of 3‐pyridyl‐4‐amino‐1,2,4‐triazole‐5‐thiol (C7H7N5S) and its cerium nitrate (Ce(NO3)3) compound on the corrosion of LY12CZ aluminum in 3.5% NaCl was investigated by means of potentiodynamic polarization (PP), electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), and energy dispersive spectrometer (EDS). Results showed that the inhibition efficiency reached 77.61% at 0.8 g L−1 concentration and was found to increase with increasing concentration of C7H7N5S. C7H7N5S is a mixed type inhibitor. The desorption onset potential was obtained from differential polarization curve. EDS data indicated that C7H7N5S can adsorb on the S phase and inhibit the cathode action of the S phase. Both kinetic and thermodynamic parameters were calculated and discussed. The adsorption of C7H7N5S on aluminum surface was found to obey the Langmuir adsorption isotherm, and being both physisorption and chemisorption. C7H7N5S and Ce(NO3)3 have an additive inhibition effect. The additive action improved the surface coverage of the aluminum and the stability of the adsorbed layer.

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Corrosion inhibition of aluminum in 0.5 M HCl solutions containing phenyl sulfonylacetophenoneazo derivatives

Cited by 43 publications

References 56 publications

The Corrosion Inhibition Effect of Triazinedithiol Inhibitors for Aluminum Alloy in a 1 M HCl Solution

The Corrosion Inhibition Effect of Triazinedithiol Inhibitors for Aluminum Alloy in a 1 M HCl Solution

Ceratonia siliqua extractas a green corrosion inhibitor for copper and brass in nitric acid solutions

Corrosion inhibition of LY12CZ aluminum alloy by 3‐pyridyl‐4‐amino‐1,2,4‐triazole‐5‐thiol and its cerium nitrate compound

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