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. 2021 Jan 6;22(2):515. doi: 10.3390/ijms22020515

Figure 1.

Figure 1

Morphology of GN and rGOs was examined using a scanning electron microscope (SEM). (a1) GN/ExF, (b1) rGO/Term, (c1) rGO/ATS, (d1) rGO/TUD—standard SEM images show 2D nanosheets morphologies. Scale bare: 50 µm. (a2) GN/ExF, (b2) rGO/Term, (c2) rGO/ATS, (d2) rGO/TUD—AEE mode showing conductive materials. Scale bare: 50 µm. Abbreviations: GN, graphene; rGO, reduced graphene oxide; SEM, scanning electron microscope; AEE, active emission element; ExF, exfoliation; Term, thermal; ATS, ammonium thiosulphate; TUD, thiourea dioxide.