Polyethyleneimine Functionalized Graphene Oxide: A Promising Inhibitor for Corrosion of Copper in the Hydrochloric Acid Environment.

Polyethyleneimine functionalized graphene oxide (PEI-GO) was prepared and characterized for its molecular structure and morphology. The PEI-GO is, for the first time, reported as an inhibitor against copper (Cu) corrosion in 0.5 M HCl using electrochemical studies.