Electrochemical study on the effect of Schiff base and its cobalt complex on the acid corrosion of steel

Synergistic effect of polyethylene glycols and rare earth Ce4+ on the corrosion inhibition of carbon steel in sulfuric acid solution: electrochemical, computational, and surface morphology studies

“…The maximum shift in the E corr value relative to the E corr of the blank is ±13 mV versus SCE. Since an inhibitor can only be regarded as of anodic or cathodic type when the displacement in E corr is greater than 85 mV [27,28], these individual compounds and mixtures can be described as mixed-type inhibitors. It can be observed that the current density (I corr ) decreased as the concentration of inhibitors was increased, confirming the corrosion inhibition activity of the studied inhibitors.…”

Electrochemical Study on the Inhibition Effect of Phenanthroline and Its Cobalt Complex as Corrosion Inhibitors for Mild Steel

“…Rangelov (Ref 17) and Co(II), Ni(II), Cu(II), and Zn(II) with 2-acetylthiophene benzoylhydrazone (Ref 18) were reported to show appreciable corrosion inhibition properties for mild steel in 1 M HCl solutions. Generally, the metal complexes were reported to be more effective in inhibiting acidic corrosion than their respective ligands ( Ref 11,12,14,[16][17][18]. The increased efficiency of the metal complexes compared to their respective ligands has been attributed to the low water solubility, high molecular weight, and molecular planarity of the complexes ( Ref 2,17), and the stabilizing chelate effect of the ligands ( Ref 12).…”

Anticorrosive efficacy and adsorptive study of guar gum with mild steel in acidic medium

“…After this discovery, natural products drag the attention of scientists around the world for the research on plant extracts for corrosion inhibition. Among others, considered substances are gums, animal proteins, herbs, and even fruit peals (Africa 2008;Al-Otaibi et al 2014;Oguzie 2006;Abdel-Gaber et al 2009;Oguzie 2007;Kliškić et al 2000;Benabdellah et al 2006;Abiola et al 2007;Raja and Sethuraman 2009;El-Etre et al 2005). Gums have been found to be good corrosion inhibitors due to their functional group; they form complexes with metal ions and on the metal surfaces.…”