Recent developments in the volatile corrosion inhibitor (VCI) coatings for metal: a review

Adsorption and anti-corrosion characteristics of vanillin Schiff bases on mild steel in 1 M HCl: experimental and theoretical study

“…1,34 SCF calculations were converged tightly (1 Â 10 À8 Eh in energy, 1 Â 10 À7 Eh in density and 1 Â 10 À7 in maximum element of the DIIS error vector). All theoretical calculations were performed in the aqueous phase because electrochemical corrosion occurs in the aqueous phase considering the solvent as a continuum of uniform dielectric constant (3), where the solute is placed as a uniform series of interlocking atomic spheres. 35 Various intrinsic molecular parameters such as electron affinity (A), ionization potential (I), electronegativity (c, indicates the ability of a group of atoms to attract electrons towards itself), global hardness (h, measure of the resistance of an atom towards charge transfer) and global soness (s, susceptibility of inhibitor molecules towards charge transfer) were calculated using the following equations 36,37 c ¼…”

“…The application of suitable corrosion inhibitors for the control of corrosion in metals and alloys is very important. [1][2][3][4] However, due to ecological concerns, the use of inorganic inhibitors is gradually being restricted. This has resulted in a surge of studies involving organic corrosion inhibitors.…”

DFT investigation of 2-mercaptobenzothiazole adsorption on model oxidized copper surfaces and relationship with corrosion inhibition

“…Its prevention is thus a crucial issue. One of the solutions to mitigate corrosion is the use of organic corrosion inhibitors [1,2,3,4], that are considered as promising candidates to replace chromate-based coatings [5,6,7]. Various organic compounds containing nitrogen, oxygen and sulfur heteroatoms, polar functional groups, and conjugated double bonds are used to prevent the corrosion of copper [8,9,10,11,12,13,14,15,16,17].…”

Surface modification for Al alloy by volatile corrosion inhibitors from cyclohexylamine, octanoic acid, and their reaction product

“…The use of volatile corrosion inhibitors (VCIs) is a main method to protect metal against atmospheric corrosion. [11][12][13] The VCI is a compound that has the ability to vaporize and condense on a metallic surface to make it less susceptible to corrosion. [14] VCIs reach the metallic surfaces by volatilization and then are adsorbed directly on the metal surface to form a protective film.…”