Figure 2

(a,b) SEM images of GF. (c–f) SEM images of GF/NiCo2S4. (g,h) TEM images of NiCo2S4. (i) SAED of NiCo2S4. Scar bar: (a) 10 μm; (b) 10 μm; (c) 10 μm; (d) 200 μm and (e) 1 μm.
(a,b) SEM images of GF. (c–f) SEM images of GF/NiCo2S4. (g,h) TEM images of NiCo2S4. (i) SAED of NiCo2S4. Scar bar: (a) 10 μm; (b) 10 μm; (c) 10 μm; (d) 200 μm and (e) 1 μm.