Adsorption and corrosion inhibition properties of 5-amino 1,3,4-thiadiazole-2-thiol on the mild steel in hydrochloric acid medium: Thermodynamic, surface and electrochemical studies

Ouici, H. B.; Tourabi, M.; Benali, O.; Selles, C.; Jama, Charafeddine; Zarrouk, A.; Bentiss, Fouad

doi:10.1016/j.jelechem.2017.09.018

Cited by 143 publications

(60 citation statements)

References 59 publications

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“…The second one at 531.5 eV is attributed to the OH − of FeOOH 50 . The third peak observed at 533.5 eV could be ascribed to the existence of oxygen in the adsorbed water 4 . On the contrary, the deconvolution of the N 1 s spectrum peak results in two peaks around 399.8 and 402.3 eV, which are mainly referred to the N atoms bonded to the MS surface (N-Fe) and to the protonated nitrogen atoms of the hydrazine group, respectively 17 .…”

Section: Resultsmentioning

confidence: 97%

Highly efficient eco-friendly corrosion inhibitor for mild steel in 5 M HCl at elevated temperatures: experimental & molecular dynamics study

El-Haddad

Radwan

Sliem

et al. 2019

Sci Rep

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Laurhydrazide N′-propan-3-one was used as an eco-friendly inhibitor for the corrosion of mild steel in 5 M HCl at elevated temperatures. Various electrochemical techniques and surface characterization methods were utilized in this study. In addition, the kinetics and thermodynamic parameters were calculated and discussed. Furthermore, a geometry optimization of LHP was performed and the time-dependent density functional theory was utilized to calculate the electronic absorption spectra. Finally, frequency calculations were, also, performed on the optimized geometry.

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Section: Resultsmentioning

confidence: 97%

Highly efficient eco-friendly corrosion inhibitor for mild steel in 5 M HCl at elevated temperatures: experimental & molecular dynamics study

El-Haddad

Radwan

Sliem

et al. 2019

Sci Rep

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“…The phase shift values n increase with the addition of the seaweed extract (0.8401-0.9007) relative to the uninhibited solution (0.818), which indicates, according to Popova et al [35], the decrease in the heterogeneity of the steel surface with the adsorption of inhibiting molecules. But they did not vary significantly, confirming that the dissolution mechanism of the steel in the absence and presence of the extract is controlled by a charge transfer process [36]. Always with Table 2, it is clear that the slope S of the linear part of the bode plots (log (f ) vs. log (|Z|)) decreases with the addition of CBE concentration and that the values of the phase angle (Φ) in the presence of the extract higher than that of the blank.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 67%

The brown algae Cystoseira Baccata extract as a friendly corrosion inhibitor on carbon steel in acidic media

et al. 2020

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The inhibition properties of the isopropanol extract of brown seaweed Cystoseira baccata (CBE), against corrosion of carbon steel in HCl 1M medium, was evaluated using the weight-loss method and electrochemical measurements. It was shown that the extract exhibit excellent performance as inhibitors and the inhibition efficiency increased with the concentration. The maximal value of inhibition efficiency is 86.5% obtained by the Tafel method at 700 mg/l at 298 K. The polarization curves indicate that the CBE acts as a mixed-type inhibitor. The results obtained by electrochemical impedance spectroscopy shows that the inhibitory action of this extract is based on the increase in the charge transfer resistance and the decrease in the double layer capacity. The temperature influence studied in the temperature range 298-328 K by weight-loss method shows that the inhibition efficiency decreases with increasing temperature for all concentrations of CBE. The adsorption and activation parameters allow us to suggest the physical adsorption of this inhibitor on the metal. The adsorption of the extract on the carbon steel follows Langmuir adsorption isotherm.

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“…The equilibrium adsorption constant, Kads is connected to the standard Gibb's free energy of adsorption (ΔG°ads) with the following equation 54 : Table 6. Thermodynamic parameters for adsorption of SP oil on MS in 1M HCl solution at different temperatures from Langmuir adsorption isotherm.…”

Section: Adsorption Isotherm and Thermodynamic Parametersmentioning

confidence: 99%

Effect of Santolina pectinata (Lag.) Essential Oil to protect against the corrosion of Mild steel in 1.0 M HCl: Experimental and quantum chemical studies

Manssouri¹,

Laghchimi²,

Ansari³

et al. 2020

Mediterr.J.Chem.,

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The essential oil of Santolina pectinata aerial parts (SP oil) was extracted by hydrodistillation and analyzed by Gas Chromatography (GC) and Gas Chromatography-Mass Spectrometry (GC/MS). 34 components were identified, accounting 59.4% of the total oil, which (Z)-heptadeca-10,16-dien-7-one (ZHD) was the major component with 28 % of the oil. The protective effect of this oil on the corrosion of mild steel (MS) in 1M HCl solution was tested by the measurements of Weight loss (WL), potentiodynamic polarization (PDP), electrochemical impedance spectroscopy (EIS). From WL measurements, the inhibiting effect was raised with the increasing of both concentration inhibitor and temperature. PDP curves led to a mixed-type inhibitor. The charge transfer process mainly controls the results of EIS measurements. The SP oil adsorption not only was discovered to obey Langmuir isotherm but showed a chemical interaction as well. The computational methods such as density functional theory (DFT), Monte Carlo (MC) and radial distribution function (RDF) simulations were also performed to analyze the possible contribution of (Z)-heptadeca-10,16-dien-7-one (ZHD) to the corrosion prevention effect of global oil.

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Adsorption and corrosion inhibition properties of 5-amino 1,3,4-thiadiazole-2-thiol on the mild steel in hydrochloric acid medium: Thermodynamic, surface and electrochemical studies

Cited by 143 publications

References 59 publications

Highly efficient eco-friendly corrosion inhibitor for mild steel in 5 M HCl at elevated temperatures: experimental & molecular dynamics study

Highly efficient eco-friendly corrosion inhibitor for mild steel in 5 M HCl at elevated temperatures: experimental & molecular dynamics study

The brown algae Cystoseira Baccata extract as a friendly corrosion inhibitor on carbon steel in acidic media

Effect of Santolina pectinata (Lag.) Essential Oil to protect against the corrosion of Mild steel in 1.0 M HCl: Experimental and quantum chemical studies

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