Synthesis of Carbon Nanofibers by Spray Pyrolysis

Due to its special properties, carbon-related nanomaterials have attracted increasing interest among scientists around the world in both synthesis and applications. Nowadays, these nanomaterials represent one of the major research topics of science and technology of materials, as well as condensed matter physics [1-4]. Carbon nano-fibers (CNFs) are composed of stacked and curved graphene layers from a quasi-one-dimensional (1D) filament. CNFs have cylindrical or conical nanostructures. Their diameters vary from a few to hundred nanometers, while lengths vary from less than a micrometer to millimeters. As shown in Figure 1, according to the angle between graphene layers and fiber axis, the morphological structure is often divided into plate CNFs, ribbon-like CNFs, herringbone CNFs [5-7].