TY - JOUR
T1 - Corrosion inhibition of carbon steel by imidazolium and pyridinium cations ionic liquids in acidic environment
AU - Ibrahim, Magdy A.M.
AU - Messali, Mouslim
AU - Moussa, Ziad
AU - Alzahrani, Abdullah Y.
AU - Alamry, Saleh N.
AU - Hammouti, Belkheir
PY - 2011
Y1 - 2011
N2 - 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 ΔG ads 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.
AB - 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 ΔG ads 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.
KW - Adsorption
KW - Corrosion inhibitor
KW - Electrochemical techniques
KW - Ionic inhibitor
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U2 - 10.4152/pea.201106375
DO - 10.4152/pea.201106375
M3 - Article
AN - SCOPUS:84858053597
SN - 0872-1904
VL - 29
SP - 375
EP - 389
JO - Portugaliae Electrochimica Acta
JF - Portugaliae Electrochimica Acta
IS - 6
ER -