초록 |
Alternating graphene and polyaniline (PANI) layer coating was tested for protecting metals against corrosion. Graphite was exfoliated by polyaniline using sonication, which resulted in a nanostructured, conductive graphene/polyaniline hybrid (GPn). The GPn was coated on copper and demonstrated excellent anticorrosion protection efficiencies under chemical and seawater models, respectively. Impedance measurements were performed in the two corrosive solutions, with the variation in charge transfer resistance over time indicating that the GPn acted as a physical and chemical barrier. |