Fig. 4From: Synthesis and characterization of multiwalled CNT–PAN based composite carbon nanofibers via electrospinningSEM images of electrospun PAN–CNT carbonized nanofibers at 1000 °C with 3 wt% of CNT and drum speed 2000 rpm, distance 10 cm, flow rate 0.3 ml/h, voltage 15 kVBack to article page