Figure 4:
TEM image of Fe
3
O
4
nanocube which is to be used for EDS measurement, (b) EDS spectrum of Fe
3
O
4
nanocube, (C) TEM image of Fe
3
O
4
/SiO
2
nanocube and (d) EDS spectrum of Fe
3
O
4
/SiO
2
nanocube.
