Experimental and theoretical elucidation on the inhibition mechanism of 1-methyl-5-mercapto-1,2,3,4-tetrazole self-assembled films on corrosion of iron in 0.5 M H2SO4 Solutions

Ma, Hongfang; Song, Tao; Sun, Huilan; Xiao, Li

doi:10.1016/j.tsf.2007.06.225

Cited by 31 publications

(12 citation statements)

References 25 publications

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“…Nowadays the research of novel inhibitors for metals or alloys is an important industrial and academic topic and the most efficient alternatives to protect metals and alloys from this phenomenon are the use of substances [1] that being adsorbed on metallic surface. It had been suggested [2,3] that most effective factors for inhibiting effects are the presence of polar atoms such as O, N, S, P, the unsaturated bonds, such as double bonds or triple bonds [4,5] and the plane conjugated systems including all kind of aromatic cycles…”

Section: Introductionmentioning

confidence: 99%

Correlation between the molecular structure and the inhibiting effect of some benzimidazole derivatives

Niamien

Fodjo

Trokourey

et al. 2012

Materials Chemistry and Physics

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Section: Introductionmentioning

confidence: 99%

Correlation between the molecular structure and the inhibiting effect of some benzimidazole derivatives

Niamien

Fodjo

Trokourey

et al. 2012

Materials Chemistry and Physics

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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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“…19,20 The organic inhibitors function through adsorption on the metal surface blocking the active sites of metal dissolution and/or hydrogen evolution, thus retarding overall rate of corrosion in aggressive environment.…”

Section: −12mentioning

confidence: 99%

Inhibiting Effect of Nicotinic Acid Hydrazide on Corrosion of Aluminum and Mild Steel in Acidic Medium

Bhat¹,

Alva²

2014

Journal of the Korean Chemical Society

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ABSTRACT. The corrosion behavior of aluminum and mild steel in hydrochloric acid medium was studied using a nicotinic acid hydrazide as inhibitor by potentiodynamic polarization, electrochemical impedance spectroscopy technique and gravimetric methods. The effects of inhibitor concentration and temperature were investigated. The experimental results suggested, nicotinic acid hydrazide is a good corrosion inhibitor for both aluminum and mild steel in hydrochloric acid medium and the inhibition efficiency increased with increase in the inhibitor concentration. The polarization studies revealed that nicotinic acid hydrazide exhibits mixed type of inhibition. The inhibition was assumed to occur via adsorption of the inhibitor molecules on the aluminum and mild steel surface and inhibits corrosion by blocking the reaction sites on the surface of aluminum.

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Experimental and theoretical elucidation on the inhibition mechanism of 1-methyl-5-mercapto-1,2,3,4-tetrazole self-assembled films on corrosion of iron in 0.5 M H2SO4 Solutions

Cited by 31 publications

References 25 publications

Correlation between the molecular structure and the inhibiting effect of some benzimidazole derivatives

Correlation between the molecular structure and the inhibiting effect of some benzimidazole derivatives

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

Inhibiting Effect of Nicotinic Acid Hydrazide on Corrosion of Aluminum and Mild Steel in Acidic Medium

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