**2.4 Electrospinning with a rolling drum collector**

In this regard, electrospinning with a rotating drum collector has been developed to allow the formation of carbon nanofibers homogeneously and thoroughly to all areas on the drum surface, resulting in a CNF of uniform thickness as shown in **Figure 5.** When the drum collector rotates, the fibers will be attracted towards the collector and subjected to a spinning effect on the rotating drum, then the spinneret moves right and left, as well as the influence of the electric field between the needle and the collector which causes the CNF to form evenly throughout and formless beads in the layer collector.

Carbon nanofibers (CNF) formed with this system has an interesting material morphology as shown in **Figure 6** which is attractive in the sense that no beads are formed on the CNF, and the fibers are evenly distributed with a homogeneous thickness. The fiber that is formed enters the nanometer scale area, from direct measurements the diameter of the CNF formed is at 262 nm, as we all know that the limitations of fiber or composite materials are said to be in the nanoscale if they have a size of 50 nm to 500 nm.
