Figure 1: Water permeation through free-standing multilayer graphene membranes.
From: Impermeable barrier films and protective coatings based on reduced graphene oxide
(a) Water loss from a container sealed with GO and RGO membranes with a diameter of ≈2 cm (thickness d≈0.5 μm). For GO, the loss is the same as through an open aperture and limited by water evaporation. Inset: photo of an HI-RGO membrane (diameter ≈2 cm). (b) Permeability of various RGO membranes with respect to moisture. The arrow indicates our detection limit. Permeability of pristine GO is taken from ref. 5. Green line: water permeability for the industrial-standard barrier films estimated using data of ref. 30 for 30 nm Al on PET.
