Figure 5.
SEM images of (a) b-GCN, (b) GCNNS, (c) Co3S4, (d) Co3S4/GCNNS and (e) EDS spectrum of Co3S4/GCNNS, (f) elemental percentages in Co3S4/GCNNS and, (g) elemental maps of Co3S4/GCNNS.
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