Fig. 6.
(A) Average density of water oxygens in a water monolayer that lies parallel to the CNT membranes, color-coded in units of molecules per Å3, where 0.033 Å-3 is the bulk density of water. CNT cylinder axes are perpendicular to the plane and pass through the centers of the inner rings. (B) MD snapshot of water molecules that form the inner (green) and outer (red) hydrogen-bonded rings lining the pore and the outer rim of the CNTs. The center water molecule (blue) is located below the sheet and inside the CNT.