Preparation and Characterization of Novel Fe₂O₃-Flaky Coated Carbon Fiber by Electrospinning and Hydrothermal Methods

Figure 4

SEM images of as-obtained Fe₂O₃-CNFs as the function of pH value: (a) 2.0, (b) 3.5, (c) 4.5, and (d) 6.0.

(a)

(b)

(c)

(d)