![Epoxy-Carbonyl Combination of Graphene Oxides 2 Epoxy-Carbonyl Combination of Graphene Oxides](/units/dcmp/gallery/images/graphene-oxides.jpg)
Top panel: prototypes of oxide functional groups on carbon. Middle and bottom panels: top and side view of the epoxy-carbonyl configuration, respectively. Pink color shows the region functionalized by oxygen.
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