Figure 2 | NPG Asia Materials

Figure 2

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

Figure 2

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

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