Figure 1

Microstructure of RGM electrode.
(a) Schematic illustration of the preparation process of RGM nanostructure foam. SEM images of (b–c) as-grown GM foam (d) Lightly loaded RGM and (e) heavily loaded RGM.

Microstructure of RGM electrode.
(a) Schematic illustration of the preparation process of RGM nanostructure foam. SEM images of (b–c) as-grown GM foam (d) Lightly loaded RGM and (e) heavily loaded RGM.