Corrosion Inhibition of Carbon Steel by Imidazolium and Pyridinium Cations Ionic Liquids in Acidic Environment
Ibrahim, Magdy; Mouslim Messali; Ziad Moussa; Abdullah Y. Alzahrani; Belkheir Hammouti; Saleh N. Alamry;
Abstract
New imidazolium–based ionic liquids and some pyridinium-based ionic liquids, were
tested as corrosion inhibitors of steel in 1.0 M HCl using potentiodynamic polarization,
linear polarization and weight loss methods. The obtained results showed that all of the
four ILs are good inhibitors for steel in 1.0 M HCl and the inhibition efficiency
increased with increasing the inhibitor concentration. All of the ILs act as mixed-type
inhibitors. Obtained results from Tafel polarization, linear polarization and weight loss
are in good agreement with each other. The adsorption of the four ILs inhibitors, obey
the Langmuir adsorption isotherm. From the adsorption isotherm, values of DGads for
the adsorption process were calculated. The effect of temperature on the corrosion
behavior of steel in presence of 1 × 10-3 M of compound II was studied in the
temperature range 298-338 K.
tested as corrosion inhibitors of steel in 1.0 M HCl using potentiodynamic polarization,
linear polarization and weight loss methods. The obtained results showed that all of the
four ILs are good inhibitors for steel in 1.0 M HCl and the inhibition efficiency
increased with increasing the inhibitor concentration. All of the ILs act as mixed-type
inhibitors. Obtained results from Tafel polarization, linear polarization and weight loss
are in good agreement with each other. The adsorption of the four ILs inhibitors, obey
the Langmuir adsorption isotherm. From the adsorption isotherm, values of DGads for
the adsorption process were calculated. The effect of temperature on the corrosion
behavior of steel in presence of 1 × 10-3 M of compound II was studied in the
temperature range 298-338 K.
Other data
| Title | Corrosion Inhibition of Carbon Steel by Imidazolium and Pyridinium Cations Ionic Liquids in Acidic Environment | Authors | Ibrahim, Magdy ; Mouslim Messali ; Ziad Moussa ; Abdullah Y. Alzahrani ; Belkheir Hammouti ; Saleh N. Alamry | Keywords | corrosion inhibitor, electrochemical techniques, ionic inhibitor, adsorption | Issue Date | 2011 | Journal | Portugaliae Electrochimica Acta | DOI | DOI: 10.4152/pea.201106375 |
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