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Figure 1

From: Ruthenium nanocrystal decorated vertical graphene nanosheets@Ni foam as highly efficient cathode catalysts for lithium-oxygen batteries

Figure 1

(a–c) Low magnification field emission scanning electron microscopy (FESEM) images of vertical graphene nanosheets (VGNS)@Ni foam. (d–f) High magnification FESEM images of VGNS@Ni foam. (g, h) Highly resolved FESEM images of VGNS@Ni foam. (i) Low magnification cross-sectional FESEM image of VGNS@Ni foam. (j) Schematic illustrations of the VGNS@Ni foam.

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