Experimental and theoretical studies for steel XC38 corrosion inhibition in 1 M HCl by N-(8-hydroxyquinolin-5-yl)-methyl)-N-phenylacetamide

In the present investigation,a new organic inhibitor,namely n-((8-hydroxyquinolin-5-yl) methyl)-nphenylacetamide (hqmp) was synthesized and characterized using 1h,13c nmr and ir spectroscopies. in the second time,the inhibition effect of hqmp on the steel xc38 corrosion in 1 m hcl,have been investigated using electrochemical measurements. the obtained results showed that the its inhibition efficiency increased with concentration and reached 93 % at 10-3 m. in addition,the hqmp takes its performance at the temperature range of 298-328 k. the adsorption of the inhibitor on the mild steel was well described by the langmuir isotherm. on the other hand,the establishing of correlation between the molecular structure of quantum chemistry indices was carried out using the density functional theory (dft).