Experimental and computational studies of a graphene oxide barrier layer covalently functionalized with amino acids on Mg AZ13 alloy in salt medium

Abstract

Leucine functionalized graphene oxide chemisorbed on a 111 surface AZ13 magnesium alloy via edge functional groups.

Experimental and computational studies of graphene oxide covalently functionalized by octylamine: electrochemical stability, hydrogen evolution, and corrosion inhibition of the AZ13 Mg alloy in 3.5% NaCl

“…Aer immersion for 5 days in the corrosion medium, the alloy did not form any corrosion product on the alloy surface due to the strong adhesion of the coating on the alloy surface. 25,26 In the present work, we have completed studies of corrosion inhibition of the octylamine-functionalized graphene oxide-coated Mg alloy in a 3.5% NaCl medium. The novelty of this work is that the long-chain octylalkylamine enhances the graphene oxide hydrophobic surface repulsion, and thus decreases the corrosive ion penetration.…”

Recent advancements in corrosion inhibitor systems through carbon allotropes: Past, present, and future

“…Inhibition effect of the PANI-CNT based nanocomposites has also been investigated in other studies. [87] Similarly corrosion inhibition property of various other CNT based nanocomposites such as graphitic filamentous nanocarbon-aligned carbon thin layer (GFN-ACTL) for copper in simulated sea water, [88] conductive polyurethane-MWCNTs composites for stainless steel in 3% NaCl, [89] Hydroxyapatite/multi-walled CNT composite for 316 stainless steel in simulated body fluid (SBF), [90] Ag substituted hydroxyapatite/functionalized multi-wall CNT nanocomposite for 316L stainless steel in SBF, [91] Poly(o-phenylenediamine)@multi-walled CNTs nanocomposites for Steel in 3.5% wt.% NaCl, [92] nickel/multi-walled CNTs composite for mild steel in 3.5% NaCl, [93] CNTs and zincrich epoxy primers for carbon steel in simulated concrete pore (SCP) solutions in the presence of chloride ions, [94] Semiconductor CdS/multi-walled CNT quantum dots (CdS/MWCNTs) for Zinc plate in 3.5% NaCl, 1 M HCl and 1 M KOH, [95] TiO 2 coated multi-wall carbon nanotube (MWCNTs)/bis-[triethoxysilylpropyl] tetrasulfide (BTESPT/TiO 2 /MWCNTs), [96] 4,5-diphenylimidazole-functionalized CNTs for Nickel alloy in sulfuric acid [97] and poly(3-aminobenzoic acid) @ MWCNTs nanocomposite for copper in 3.5% NaCl solution. [98] Table 1 represents the collection of some major reports on CNTs composites as anticorrosive coating.…”

Synthesis of MOFs/GO composite for corrosion resistance application on carbon steel

“…[8][9][10] However, the poor dispersibility of GR in various solvents can affect its wide application in the eld of coatings. 11,12 Graphene oxide (GO) is an oxidized derivative of GR and has the ability to form stable solutions in water and certain organic solvents. [13][14][15] Copper ions and manganese ions have unlled d orbitals in their structures, which are easy to coordinate with nitrogen atoms, so they are selected as metal ions for the synthesis of MOFs.…”