TY - JOUR ID - 7634 TI - Experimental and Theoretical Studies of One Dihydropyridine Derivative as Corrosion Inhibitor in Acidic Media JO - Iranian Journal of Analytical Chemistry JA - IJAC LA - en SN - 2383-2207 AU - Shafieekhani, Homa AU - Karimi, Somayeh AU - Torkashvand, Mohammad AD - Department of Chemistry, Payam Noor University, P.O. Box 19395-4697, Tehran, Iran AD - Islamic Azad University, Lamerd Branch, P.O. Box 74341-553881, Lamerd, Iran AD - College of Engineering, University of Tehran, P.O. Box. 14395-515, Tehran, Iran Y1 - 2021 PY - 2021 VL - 8 IS - 1 SP - 10 EP - 16 KW - Corrosion Inhibition KW - Support vector machine KW - Mild steel KW - potentiometric polarization DO - 10.30473/ijac.2021.57472.1179 N2 - A new organic compound, namely dihydropyrimido [4,5-b][1,6] naphthyridine-2,4, 6, 8(1H,3H,7H,9H)-tetraones with amino acid moiety (DHPN) was synthesized and characterized by 1H, 13C Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy experiments.  DHPN was investigated for the first time as a green inhibitor of mild steel (A105) corrosion in acidic (0.1, 0.5 mol L-1 H2SO4 and HCl) solutions using potentiodynamic polarization technique. The results showed that, inhibition efficiency increased with the inhibitor concentration within the range of 0.95-19 mg L-1. The polarization curves demonstrated that, this compound act as a mixed type inhibitor. The adsorption of the DHPN molecule on the surface of mild steel was found to obey the Langmuir adsorption isotherm. Besides, data processing methods like support vector machine modelling was performed to prove the relationship between inhibitory effect and molecular structure. UR - https://ijac.journals.pnu.ac.ir/article_7634.html L1 - https://ijac.journals.pnu.ac.ir/article_7634_7e0dcc541cd5d2778f1e679a79099395.pdf ER -