Iontové kapaliny jako inhibitory koroze v kyselém a alkalickém prostředí

Abstract

This dissertation thesis reports the research of ionic liquids based on imidazolium and quinoline as corrosion inhibitors for mild steel, stainless steel AISI 304 and AISI 316, aluminum and copper in the solution of 1M HCl, 1M H2SO4, 1M NaOH and 1M NaCl. The efficiency of corrosion inhibition was evaluated using linear voltammetry, electrochemical impedance spectroscopy, weight loss measurements, adsorption isotherms, surface SEM analysis and quantum chemical calculations. Acute toxicity tests for Daphnia magna were also performed for 1-octyl-3-methyl-imidazolium bromide, 1-octyl-3-methyl-imidazolium hydrogensulphate, 1-octyl-3-methyl-imidazolium chloride and N-butyl- quinolinium bromide.