Figure 4
From: Interface-Induced Ordering of Gas Molecules Confined in a Small Space
Schematic of the structures at the HOPG-water interface when water is supersaturated with pure oxygen (a) and pure nitrogen (b).
For clarity, some structures may not be represented in the correct scale. Orange squares represent ordered structures; cap-shaped nanostructures and small nitrogen and oxygen clusters at the interface are shown in purple; 2D disordered layers are shown in yellow; and gas molecules dissolved in water are shown in red. Each red sphere represents an individual gas molecule and some molecules can aggregate into clusters in water. The interfacial water layers that stabilize these 2D and 3D nitrogen and oxygen structures are shown in deep blue.
