“…Carbon nanofibers, like other one‐dimensional nanostructures such as nanowires, nanotubes, and molecular wires, have been receiving increasing attention because of their high length‐to‐diameter ratio. This is due to their potential applications in nanocomposites,1 templates for nanotubes,2 filters,3 rechargeable batteries,4 supercapacitors,5 bottom–up assembly in nanoelectronics and photonics,6 and so forth. Carbon nanofibers can be produced by a traditional vapor growth method7 or by a plasma‐enhanced chemical vapor deposition method, which were developed at the beginning of this century 8.…”