Anti-corrosion performance of covalent layer-by-layer assembled films via click chemistry reaction on the copper surface

Constructing the films with remarkable anti-corrosion performance is the key issue to metal protection. A kind of covalent layer-by-layer (LbL) assembly films of triazole is fabricated on the copper surface in this work. The covalent LbL system provides a promising and efficient protection. The optimum assembly layers are three and the best protection efficiency is 96.9 %. Enhancement in corrosion resistance is due to the formation of the covalent triazole films via the click chemistry reaction catalysed by cuprous oxide. The mechanism of protection is discussed via the surface analysis and the molecular dynamics simulation.

Automated summary

This study demonstrates that constructing covalent layer-by-layer assembly films on copper surfaces can significantly enhance corrosion resistance, with an optimum of three assembly layers achieving a protection efficiency of 96.9%. The mechanism of protection is attributed to the formation of covalent triazole films catalyzed by cuprous oxide, as discussed through surface analysis and molecular dynamics simulations.