Figure 1

SEM images of (a) graphite and (b) FLG; TEM image of (c) FLG and HRTEM image of (d) FLG, in which the lattice planes correspond to (002) planes with an interlayer distance of 0.344–0.348 nm.

SEM images of (a) graphite and (b) FLG; TEM image of (c) FLG and HRTEM image of (d) FLG, in which the lattice planes correspond to (002) planes with an interlayer distance of 0.344–0.348 nm.