Investigation of corrosion inhibition of carbon steel in 0.5 M H2SO4 by new bipyrazole derivative using experimental and theoretical approaches

Hmamou, D. Ben; Salghi, R.; Zarrouk, A.; Zarrok, H.; Touzani, Rachid; Hammouti, B.; Assyry, A. El

doi:10.1016/j.jece.2015.03.018

Cited by 56 publications

(19 citation statements)

References 64 publications

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“…It was observed from this figure that both the cathodic reaction and the anodic reaction were inhibited, and in the presence of BEET, the corrosion potentials shifted to the positive direction compared to the uninhibited sample, indicating that the inhibitor reduce both dissolution of metal and hydrogen evolution reactions. In the other hand, it could be seen that the value of βc for different concentrations of BEET were almost equal, which may be attributed that the hydrogen evolution-controlled and the mechanism of proton discharge reaction did not change by addition of BEET to 1.0 M HCl solution [39]. However, the values of β a change markedly in the presence of inhibitor and the maximum shift in E corr value compared to the blank solution was 60 mV, this indicates that our inhibitor act as a mixed-type inhibitor with prevailing effect of anodic reaction, which suggests that BEET adsorb on anodic sites, and filling gaps and so promoting the formation of an adherent protective layer [40,41].…”

Section: Potentiodynamic Polarization Measurementmentioning

confidence: 94%

Adsorption and Corrosion Inhibition Properties of Butanolic Extract of Elaeoselinum thapsioides and Its Synergistic Effect with Reutera lutea (Desf.) Maires (Apiaceae) on A283 carbon Steel in Hydrochloric Acid Solution

et al. 2019

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The current investigation presents the corrosion activity of Elaeoselinum thapsioides (BEET) butanolic extract in 1 M HCl as a novel green source of corrosion inhibitor, and it's synergetic effect with another butanolic extract of Reutera lutea (BERL), whose belongs to the Apiaceae family. Weight loss measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements have been done to study the inhibition efficiency. The obtained results showed that the inhibition efficiency of BEET alone increase with concentration and reached a value of 82% at 900 ppm. However, the maximum protection efficiency was more than 92% with the combination of BEET and BERL inhibitors. The rise of temperature caused a significantly decreased of inhibition efficiency. The potentiodynamic polarization results revealed that the extract functions as mixed-type inhibitor with predominance at anodic domain, and the adsorption process of the extract follows Langmuir isotherm. In addition, EIS shows that increasing the concentration of the inhibitor leads to an increase of the charge transfer resistance and reducing the double layer capacitance. The synergistic factor (S) was used to investigate the synergistic behavior of the selected inhibitors.

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Section: Potentiodynamic Polarization Measurementmentioning

confidence: 94%

Adsorption and Corrosion Inhibition Properties of Butanolic Extract of Elaeoselinum thapsioides and Its Synergistic Effect with Reutera lutea (Desf.) Maires (Apiaceae) on A283 carbon Steel in Hydrochloric Acid Solution

et al. 2019

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“…The values of electrochemical kinetic parameters obtained from the Tafel fitting of the polarization curves are presented in Table 2. The shift in E corr values of the inhibited systems compared to the blank solutions is less than 80 mV, suggesting that the studied benzimidazole derivatives are mixed type inhibitors [19][20][21]. That is, they inhibit both the anodic dissolution of mild steel and the cathodic H + ion reduction.…”

Section: Polarization Resultsmentioning

confidence: 91%

Corrosion inhibition potentiality of some benzimidazole derivatives for mild steel in hydrochloric acid: Electrochemical and weight loss studies

Lgaz¹,

Salghi²,

Jodeh³

2016

Int. J. Corros. Scale Inhib.

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The adsorption and inhibition effects of three benzimidazole derivatives (BDD), namely: 2-(2-pyridyl)benzimidazole (PBD), 2-bromo-1H-benzimidazole (BrBD), and 2-chlorobenzimidazole (ClBD) on mild steel corrosion in 1 M HCl have been studied by electrochemical and weight loss methods. Results showed that inhibition efficiency increases with concentration and maximum value was obtained at 5·10 -3 M concentration. From the results, it is concluded that the BDD inhibited mild steel corrosion in 1 M HCl by adsorbing on the metal surface. Polarization results showed that the BDD act as mixed type inhibitors. The adsorption of BDD onto the mild steel surface was described by the Langmuir adsorption isotherm.

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“…The reduction in inhibition efficiency at higher temperatures can be ascribed to desorption of some inhibitor molecules from the CS surface. What's more, makes a more surface area of steel to come in contact with corrosive medium, bringing about an expanded corrosion rate and diminished inhibitory effectiveness [35].…”

Section: Effect Of Temperaturementioning

confidence: 99%

Inhibitor effect of new azomethine derivative containing an 8-hydroxyquinoline moiety on corrosion behavior of mild carbon steel in acidic media

2018

Int. J. Corros. Scale Inhib.

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A new Azomethine derivative namely 5-(((4-hydroxybenzylidene)amino)methyl)quinolin-8-ol (HBHQ) was synthesized and identified by different spectroscopic methods. The product was assessed in the inhibition of corrosion of carbon steel (CS) in 1 M HCl using Tafel polarization, weight loss and electrochemical impedance spectroscopy. Their property anticorrosion is relative in concentrations and achieved 92% at the optimum concentration of 10-3 M. Polarization studies showed that that the newly synthesized inhibitor was of mixed type in nature. The EIS data bring that, the development of a protective layer of azomethine derivative increase the charge transfer resistance and decreases in the double layer capacitance of carbon steel in acid medium. The adsorption process at interface of carbon steel in hydrochloric acid by HBHQ was studied at different temperatures (298-338 K) by means of Tafel polarisation measurements. The adsorption of azomethine derivative on the carbon steel (CS) surface followed Langmuir adsorption isotherm and in order to discover the mode of adsorption process, various thermodynamic and activation parameters were evaluated. Quantum chemical calculations were performed using methods based on density functional theory (DFT/B3LYP) and Monte Carlo simulations (MCs). Indeed, the results obtained by this computation reflect a good agreement with the practical part.

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Investigation of corrosion inhibition of carbon steel in 0.5 M H2SO4 by new bipyrazole derivative using experimental and theoretical approaches

Cited by 56 publications

References 64 publications

Adsorption and Corrosion Inhibition Properties of Butanolic Extract of Elaeoselinum thapsioides and Its Synergistic Effect with Reutera lutea (Desf.) Maires (Apiaceae) on A283 carbon Steel in Hydrochloric Acid Solution

Adsorption and Corrosion Inhibition Properties of Butanolic Extract of Elaeoselinum thapsioides and Its Synergistic Effect with Reutera lutea (Desf.) Maires (Apiaceae) on A283 carbon Steel in Hydrochloric Acid Solution

Corrosion inhibition potentiality of some benzimidazole derivatives for mild steel in hydrochloric acid: Electrochemical and weight loss studies

Inhibitor effect of new azomethine derivative containing an 8-hydroxyquinoline moiety on corrosion behavior of mild carbon steel in acidic media

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