Synthesis of bolaamphiphile surfactants and their inhibitive effect on carbon steel corrosion in hydrochloric acid medium

Chebabe, Driss; Chikh, Z. Ait; Dermaj, A.; Rhattas, K.; Jazouli, T.; Hajjaji, Najat; Mdari, F. El; Srhiri, A.

doi:10.1016/j.corsci.2004.03.016

Cited by 22 publications

(7 citation statements)

References 7 publications

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“…Quantum chemical calculations have previously been used to establish relationships between molecular properties of the inhibitor molecules and their ability to prevent corrosion 15–19. Surfactants molecules added to corrosive solutions are known to aggregate at interfaces and functioning as corrosion inhibitors 20–22. The experimental studies of the surfactant molecules in acidic medium show that N ‐decyl‐1,2,4‐triazole, N ‐undecyl‐1,2,4‐triazole, and N ‐dodecyl‐1,2,4‐triazole (see Fig.…”

Section: Introductionmentioning

confidence: 99%

Computational studies of the corrosion‐inhibition efficiency of iron by triazole surfactants

Touil

Hajjaji

Sundholm

et al. 2012

Int J of Quantum Chemistry

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The corrosion-inhibition efficiency of N-decyl-1,2,4-triazole, N-undecyl-1,2,4-triazole, and N-dodecyl-1,2,4-triazole surfactants and the corresponding protonated molecules have been studied computationally using density functional theory and secondorder Møller-Plesset calculations. Corrosion-inhibition properties and the strength of the affinity of the iron-surfactant molecules were estimated by using an appropriate cluster model. The ironsurfactant complexes were constructed by attaching the triazole ring to the iron surface modeled by one and five iron atoms, respectively. Relations between molecular properties and corrosion-inhibition efficiency were determined by using linear regression and quantitative structure-activity relationship (QSAR). The QSAR analysis yielded significant correlations between the corrosion-inhibition activity of the studied molecules with molecular properties such as the highest occupied molecular orbital, the lowest unoccupied molecular orbital, dipole moments (l), and the total atomic charges. Fukui indexes were also calculated for assessing correlations between them and experimental corrosion-inhibition efficiencies. Solvent effects were investigated by using the polarized continuum model. The effects of the acidity medium and the local reactivity of the triazole derivatives with iron were also analyzed. The calculated binding energy of 276 kJ/mol for the Fe 5 -N-dodecyl-1,2,4-triazole cluster shows that the surfactant molecules bind strongly to iron surfaces, which is in agreement with experimental data.

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Section: Introductionmentioning

confidence: 99%

Computational studies of the corrosion‐inhibition efficiency of iron by triazole surfactants

Touil

Hajjaji

Sundholm

et al. 2012

Int J of Quantum Chemistry

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“…When both of these features combine, enhanced inhibition can be observed. Several amines [3][4][5], aminothiols [6][7][8], thio-compounds [9][10][11][12], triazole [13][14][15][16], tetrazole [17][18][19], imidazole [20][21][22], thiazoles [23][24], phosphonate [25] and surfactants [26,27] exhibit good inhibitory effect in hydrochloric acid. Notwithstanding several structural similarities with some of the above mentioned compounds, the derivatives of benzothiazine have not been studied, in our knowledge, as steel corrosion inhibitors.…”

Section: Introductionmentioning

confidence: 99%

New Mechanism Synthesis of 1,4-Benzothiazine and its Inhibition Performance on Mild Steel in Hydrochloric Acid

Aloui¹,

Forsal²,

Sfaira³

et al. 2009

Port. Electrochim. Acta

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Abstract1-(3-methyl-4H-1,4-benzothiazin-2-yl)ethanone (1,4-BT) was synthesised via a new mechanism. 1,4-BT was thereafter tested as corrosion inhibitor of mild steel in hydrochloric solution at 293 K by weight loss measurements and electrochemical techniques (potentiodynamic polarisation, polarisation resistance, impedance spectroscopy (EIS)). Inhibiting efficiency (E%) increased with concentration and reached highest values up to 98% even at low concentration with changing the mechanism of the corrosion process. Results obtained showed that the inhibitor studied was an efficient inhibitor, especially in cathodic domain. The temperature effect on the corrosion behaviour of mild steel in 1 M HCl with and without 1,4-BT at 5 10 -3 M was studied in the temperature range from 293 to 333 K. E% remains the same even at high temperature. The adsorption free energy and activation parameters for the mild steel dissolution reaction, in the presence of 1,4-BT, were determined. 1,4-BT is adsorbed on the mild steel surface according to a Langmuir isotherm adsorption model.

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“…Surfactants have been widely used as corrosion inhibitors for some metals and alloys in cleaning, pickling and petroleum industries processes [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. The inhibiting action of surfactant compounds on the corrosion of carbon steel in aqueous media is usually related to their adsorption on the metal surface.…”

Section: Introductionmentioning

confidence: 99%

Synergistic inhibition between the gemini surfactant and bromide ion for steel corrosion in sulphuric acid

Zheng

Qiu

et al. 2008

J Appl Electrochem

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The inhibitive synergistic effect between a cationic gemini surfactant, 1,3-propane-bis(dimethyl dodecylammonium bromide) (12-3-12), and bromide ion for the corrosion inhibition of cold rolled steel in 0.5 mol L -1 H 2 SO 4 was investigated by weight loss, potentiodynamic polarization method and electrochemical impedance spectroscopy (EIS). The inhibition system composed by 12-3-12 and bromide ion is efficient. The adsorption mechanism of the 12-3-12 and bromide ion on steel in acidic medium is discussed on the basis of experimental data and an adsorption model is proposed. Adsorption of inhibitor system on the mild steel surface in acidic medium obeys Langmuir's adsorption isotherm. In addition, potentiodynamic polarization studies show that the system acts as a mixed-type inhibitor. Electrochemical impedance spectroscopy also suggests the formation of a protective layer on the steel surface by the adsorption of surfactant molecules and bromide ions.

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Synthesis of bolaamphiphile surfactants and their inhibitive effect on carbon steel corrosion in hydrochloric acid medium

Cited by 22 publications

References 7 publications

Computational studies of the corrosion‐inhibition efficiency of iron by triazole surfactants

Computational studies of the corrosion‐inhibition efficiency of iron by triazole surfactants

New Mechanism Synthesis of 1,4-Benzothiazine and its Inhibition Performance on Mild Steel in Hydrochloric Acid

Synergistic inhibition between the gemini surfactant and bromide ion for steel corrosion in sulphuric acid

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