Corrosion Inhibition of Carbon Steel by Imidazolium and Pyridinium Cations Ionic Liquids in Acidic Environment

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 ∆G 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. .

New Eco-Friendly 1-Alkyl-3-(4-phenoxybutyl) Imidazolium-Based Ionic Liquids Derivatives: A Green Ultrasound-Assisted Synthesis, Characterization, Antibacterial Activity and POM Analyses

“…Due to these unique properties, ILs have been widely synthesized and investigated as media for electrodeposition of metals [6][7][8], as a tool for lignocellulosic biomass fractionation [9], catalysis and biocatalysis [10][11][12][13][14][15][16], corrosion inhibition [17][18][19][20], food chemical science [21], and the nuclear industry [22].…”

Corrosion inhibition of 1-vinylimidazole-3-phenacyl hexafluoroantimonate salt on mild steel in HCl solution

“…Adsorption of inhibitor on the metal surface will change the structure of the electric double layer. The adsorption itself depends to a great extent on the molecular structure [3].…”

Conventional versus ultrasound and microwave assisted synthesis: Some new environmentally friendly functionalized picolinium-based ionic liquids with potential antibacterial activity

“…Eight types of human pathogens were selected in order to test the in vitro antibacterial activity of some synthesized ILs (1)(2)(3)(4)(5). MIC values are summarized in Table V.…”