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|Title:||One-step synthesis of polycrystalline carbon nanofibers with periodic dome-shaped interiors and their reversible lithium-ion storage properties|
|Citation:||Deng, D., Lee, J.Y. (2007-08-21). One-step synthesis of polycrystalline carbon nanofibers with periodic dome-shaped interiors and their reversible lithium-ion storage properties. Chemistry of Materials 19 (17) : 4198-4204. ScholarBank@NUS Repository.|
|Abstract:||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. © 2007 American Chemical Society.|
|Source Title:||Chemistry of Materials|
|Appears in Collections:||Staff Publications|
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