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Typical electron diffraction pattern from graphene/graphane aggregates exhibits (A) asymmetrical electron diffraction rings indicative of texturing (i.e., nonhomogeneous dispersion) of two phases. Different regions within the same aggregate exhibit diffraction rings from (B) only graphene (solid triangles), (C) both graphene and graphane, or (D) only graphane (open triangles). To aid in visual clarity, the diffraction patterns are displayed in reverse contrast.
