Polar Sites on a Carbon Surface

Oxygen-containing sites on the surface of carbonaceous materials are situated predominantly on boundaries of graphene layers. It is attributed to a great difference in the chemical activity of basal 

FIGURE 3.4 Different carbon sheets (a, c) with (polar and hydrophilic) and (b, d) without (nonpolar and hydrophobic) 0-containing sites (c, d) producing different surface fields (calculated using FieldView 2.0.2 2011) distance between sheets (b, d) is 0.91 nm. 

Nuclear Magnetic Resonance Studies of Interfacial Phenomena 

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