Corrosion inhibition performance of new Schiff base cyclohexanamine derivatives on C-steel in 1 M HCl solution: Electrochemical, chemical, surface and computational explorations

Amphiphilic Janus Graphene Oxide Acts as a Corrosion Inhibitor to Mitigate the Corrosion Caused by a 1 M HCl Solution on Mild Steel

“…JGO with grafted hydrophobic alkyl chains significantly reduces the corrosion current density from 125.81 to 25.27 μA cm –2 at 25 ppm, which decreases to only 75.58 μA cm –2 in the system with the same concentration of GO. In general, corrosion inhibitors can be classified into three types on the basis of the degree of the potential shift: cathode type, anode type (the shift of E corr toward the cathode or anode direction exceeds 85 mV), and mixed type (the shift of E corr is <85 mV). , In the investigation presented here, the corrosion potential undergoes a modest negative shift with the incorporation of GO by 13 mV and JGO by 25 mV, signifying their function as mixed-type corrosion inhibitors. , …”

“…18,51 In the investigation presented here, the corrosion potential undergoes a modest negative shift with the incorporation of GO by 13 mV and JGO by 25 mV, signifying their function as mixed-type corrosion inhibitors. 52,53 Toghan et al discussed the relationship between corrosion potential and zero-charge potential (ZCP) to further explore the adsorption mechanism of corrosion inhibitors. 54,55 It has been reported that the ZCP of iron in a HCl solution is equal to −530 mV versus SCE.…”