Schiff's base derived from 2-acetyl thiophene as corrosion inhibitor of steel in acidic medium

Aouniti, A.; Elmsellem, H.; Tighadouini, Saïd; Azzouzi, M. El; Radi, Smaail; Chetouani, A.; Hammouti, B.; Zarrouk, A.

doi:10.1016/j.jtusci.2015.11.008

Cited by 47 publications

(25 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high value of the dipole moment of pyrazole in the neutral and protonated forms probably indicates strong dipole-dipole interactions of D molecules and the metallic surface. Finally, and according to Lukovits, if ∆N<3.6, the inhibition efficiency increased with increasing electron-donating ability at the metal surface [7]. In this study, the value of ∆N for D was less than 3.6 for both neutral and protonated forms.…”

Section: Quantum Chemical Calculationssupporting

confidence: 54%

“…Despite all these beneficial features, iron is very corrosive, especially in water and air. This corrosion can cause serious damage to the metal, thereby limiting its applications [1][2][3][4][5][6][7]. To prevent iron from acidic aggression, the use of organic inhibitors is one of the most practical methods and cost-effective choices to protect metals against corrosion; most of the well-known acid inhibitors are organic compounds containing nitrogen, sulphur and oxygen atoms [8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl

Chadli

Elazouzi

Khelladi

et al. 2017

Port. Electrochim. Acta

View full text Add to dashboard Cite

This work is devoted to examine the effectiveness of pyrazoles 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) on corrosion of mild steel in a 1 M HCl solution, using weight loss measurement at concentration effects. The inhibitor (D) was synthesized in our laboratory. The formation of this pyrazole was carried out with hydrazine and α-unsaturated aldehydes, and the structure was checked by spectroscopic means, such as FT-IR, 1H NMR and 13C NMR. Polarization curves and electrochemical impedance spectroscopy (EIS) methods were used to assess both the corrosion rate and inhibition efficiency. Potentiodynamic polarization showed that D behaved as a mixed-type inhibitor. The Nyquist plots showed that, while D concentrations increased, charge-transfer resistance increased and double-layer capacitance decreased, involving increased inhibition efficiency. Adsorption of the inhibitor molecules corresponds to Langmuir adsorption isotherm. Quantum chemical calculations showed that the inhibitor was prone to be protonated in the acid, and the results were in full agreement with experimental observations.

show abstract

Section: Quantum Chemical Calculationssupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl

Chadli

Elazouzi

Khelladi

et al. 2017

Port. Electrochim. Acta

View full text Add to dashboard Cite

show abstract

“…Increasing the concentration of the inhibitors (FMs) increases the rate of interaction between the N-atoms in FMs and the Fe atoms in MS surface at the active-sites leading to adsorption of the molecules of (FMs) on the MS surface [21].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

3,6-Di(pyridin-2-yl) pyridazine derivatives as original and new corrosion inhibitors in support of mild steel: Experimental studies and DFT investigational

2019

Int. J. Corros. Scale Inhib.

View full text Add to dashboard Cite

Corrosion inhibition performance of three new synthesized novel compounds namely, 1-((3,6di(pyridin-2-yl)pyrdazin-4-yl)methyl)-indoline-2,3-dione (FM1), 4-(morpholinomethyl)-3,6di(pyridin-2-yl)pyridazine (FM2) and 3,6-di(pyridin-2-yl)-4-(p-tolyl)-pyridazine (FM3) on mild steel (MS) was investigated by HCl with 1 M concentration. The corrosion inhibition performance of the synthesized compounds was studied by weight lοss, impedance spectroscopy(EIS) and potentiodynamic polarization (PDP) methods. The results showed that tһe corrosion inhibition efficiency increases with the increase in the concentration of the compounds (FMs). The PDP measurements reveal that the type of these compounds is a mixed-type behavior. The results of impedance studies (EIS) showed that in the presence of FMs, the R ct values increase while the C dl values decrease due to the adsorption of inhibitors (FMs) on the mild steel surface. EIS study showed that there is one capacitance loop related to charge transfer mechanism. The adsorption of (FMs) on the mild steel surface obeys the Langmuir-adsorption isοtherm. The 1-((3,6-di(pyridin-2-yl)pyrdazin-4-yl)methyl)-indoline-2,3-dione (FM1) showed a better inhibition performance in comparison with the FM2 and FM3. The theoretical results which shows also a good correlation with the electrochemical experiments and weight loss measurements.

show abstract

“…Schiff bases are organic compounds containing azomethine linkage and have many applications in corrosion science. The hetero atoms present in these molecules are responsible for the corrosion inhibition property for mild steel (MS), aluminium, copper and zinc in acid media [11][12][13][14][15][16][17][18] .…”

Section: Introductionmentioning

confidence: 99%

Interaction of two heterocyclic Schiff bases derived from 2-acetyl pyridine on mild steel in hydrochloric acid: Physicochemical and corrosion inhibition investigations

Binsi¹,

Joby²,

Ragi³

et al. 2020

10.5267/j.ccl

View full text Add to dashboard Cite

Two heterocyclic Schiff bases namely (E)-2-(1-(2-phenylhydrazono)ethyl)pyridine (or 2acetyl pyridine phenyl hydrazone) (2APPH) and (E)-2-(1-triazylidineethyl)pyridine (or 2acetyl pyridine semicarbazone) (2APSC) were synthesized, characterized and their corrosion inhibition behaviour as well as mechanism of inhibition were investigated by different techniques. Structural characterization includes NMR, Mass, IR and UV-visible spectroscopy and elemental analysis. Corrosion inhibition behaviour of aforesaid compounds on mild steel in 1M hydrochloric acid was examined by electrochemical methods including potentiodynamic polarization analysis and electrochemical impedance spectroscopic techniques. The mechanism of corrosion inhibition was explored and supplemented by adsorption and surface morphological studies. Quantum mechanical investigations on corrosion behaviour of compounds were also conducted and satisfying correlation was noticed between the results of corrosion measurement methods and quantum mechanical evaluations.

show abstract

Schiff's base derived from 2-acetyl thiophene as corrosion inhibitor of steel in acidic medium

Cited by 47 publications

References 73 publications

Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl

Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl

3,6-Di(pyridin-2-yl) pyridazine derivatives as original and new corrosion inhibitors in support of mild steel: Experimental studies and DFT investigational

Interaction of two heterocyclic Schiff bases derived from 2-acetyl pyridine on mild steel in hydrochloric acid: Physicochemical and corrosion inhibition investigations

Contact Info

Product

Resources

About