Fig. 1: Enhanced Cu anticorrosion performance of bilayer graphene.
From: Enhanced copper anticorrosion from Janus-doped bilayer graphene
a Schematic for the oxidation process of monolayer graphene (MLG) and bilayer graphene (BLG) coated Cu foils. The top panel shows the three-dimensional view and the bottom panel shows the side view. b Photograph of the monolayer and bilayer graphene coated Cu after being oxidized at 250 °C for 6 h. c Optical image of the monolayer and bilayer graphene coated Cu after storage at room temperature for 5 years in Beijing, China. d Raman spectra corresponding to the monolayer and bilayer graphene coated area in c. e Cross-sectional STEM image of the monolayer (left) and bilayer (right) graphene coated Cu after being oxidized at 270 °C under 230 Pa O2 for 10 min. Inset: atomic stacking model of Cu showing the crystal plane of the steps.
