Figure 5From: Hydrothermal phase transformation of hematite to magnetiteSEM images and corresponding XRD patterns of iron oxide particles. SEM images of iron oxide particles formed with (a) FeCl3 + KOH and (b) FeCl3 + KOH + EDA. (c) The corresponding XRD patterns of iron oxide obtained for the cases of (a) and (b).Back to article page