Figure 1
Field emission scanning electron microscopic image of (a) pristine SnO2 powder, (b) Ni-SnO2 powder and (c) Cr-SnO2 powder.
Figure 1 | Scientific Reports
Field emission scanning electron microscopic image of (a) pristine SnO2 powder, (b) Ni-SnO2 powder and (c) Cr-SnO2 powder.
