Adsorption and inhibitive properties of a new heterocyclic furan Schiff base on corrosion of copper in HCl 1 M: Experimental and theoretical investigation

Triazolyl-acylhydrazone derivatives as novel inhibitors for copper corrosion in chloride solutions

“…The results indicate the formation and protective effects of the inhibitor-adsorptive layer on electrode surface, and its contribution to increasing corrosion resistance. The low frequency diffusive impedance is due to diffusion of corrosion reactants such as dissolved oxygen across the formed inhibitor film [39]. Actually, the rate-limiting diffusive behaviour is observed in the polarization curved in Fig.…”

“…At the same time, Schiff bases have been investigated as corrosion inhibitors for steel, copper, and zinc. Due to the presence of amine double bond, the Schiff bases can form stable complexes which are closely packed in the coordination sphere of metal ions for corrosion inhibition [38][39][40]. As a derivative of Schiff bases, acylhydrazone compounds can act as ditopic ligands, and show the potential to form multi-adsorption structures with metal atoms [41,42].…”

Experimental and theoretical studies of xanthan gum and its graft co-polymer as corrosion inhibitor for mild steel in 15% HCl

“…and Á are calculated using the values of I and A. The theoretical values of and Á of Fe are 7 eV and 0 eV, respectively [36,37]. According to Lukovits et al [38] if the value of N is less than 3.6, the efficiency of inhibition increases with increasing electron-donating ability of the inhibitor to the metal surface.…”

Corrosion inhibition of mild steel by two new S-heterocyclic compounds in 1 M HCl: Experimental and computational study

“…This theoretical approach has been widely used to investigate a correlation between molecule structure and inhibition efficiency of an organic compound [20,21]. Therefore, it is worthwhile to compute the structural parameters including the highest occupied molecular orbital energy ሺ‫ܧ‬ ୌ ሻ, the lowest unoccupied molecular orbital ሺ‫ܧ‬ ሻ, dipole moment ሺµሻ, atomic charge, etc.…”