10.1021/cm0707206.s001 Da Deng Da Deng Jim Yang Lee Jim Yang Lee One-Step Synthesis of Polycrystalline Carbon Nanofibers with Periodic Dome-Shaped Interiors and Their Reversible Lithium-Ion Storage Properties American Chemical Society 2007 autocatalytic chemical vapor deposition carbon nanofibers 3 D graphene flakes Preliminary electrochemical measurements Polycrystalline Carbon Nanofibers forklike carbon nanofibers 2007-08-21 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/One_Step_Synthesis_of_Polycrystalline_Carbon_Nanofibers_with_Periodic_Dome_Shaped_Interiors_and_Their_Reversible_Lithium_Ion_Storage_Properties/2989927 Carbon nanofibers and carbon nanotubes continue to draw unwavering interest from industrial and academic communities because of their fascinating properties and their projected application values. This paper reports a one-step synthesis of high-purity carbon nanofibers with dome-shaped interiors by the noncatalytic thermal decomposition of acetylene over a copper surface at atmospheric pressure. These uniquely shaped carbon nanofibers were impurity free, and their dome-shaped interiors could be repeated with high periodicity throughout the length. In addition, Y-junction and forklike carbon nanofibers with the same internal structure were also formed as byproducts. The growth of these unique carbon nanomaterials could be rationalized by a mechanism based on the autocatalytic chemical vapor deposition of 3D graphene flakes. Preliminary electrochemical measurements indicated that the carbon nanofibers could be used as the active anode material for lithium-ion batteries, delivering good cyclability and a reversible capacity of ∼260 mAh/g at the high specific current of 100 mA/g.