Polyacrylonitrile-based carbonized fibers and metal-carbonized fiber nanocomposites for thermal transport.

Academic Article


  • This work examines the fabrication and thermal analysis of metal-carbon composite fibers prepared via an electrospinning process. The metal-carbon composite fibers of silver, copper, gold, and nickel were prepared by electrospinning of a composite solution of polyacrylonitrile (PAN) and metal precursor followed by heat treatment in air, nitrogen to 1000 degrees C and in 6% H2, respectively. Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), Energy dispersive spectroscopy (EDS) and Scanning thermal microscopy (SThM) were applied to characterize the metal-carbon fibers. TEM analysis showed a relatively uniform, contact-free distribution of the nanoparticles on the surface of the carbon fibers with size range of 3 nm-10 nm. Thermal analysis data showed an enhancement in the thermal conductivity of the nanomaterials when compared with the model PAN-based carbonized fibers. This was attributed to the incorporation of metal nanoparticles in the fiber matrix and on the surface.
  • Authors

  • Ochanda, Fredrick
  • Atkinson, Ariel
  • Fey, Edmond O
  • Andala, Dickson
  • Jones, Wayne
  • Status

    Publication Date

  • December 2010
  • Keywords

  • Electrospinning
  • Nanocomposites
  • Polyacrilonitrile
  • SThM
  • Digital Object Identifier (doi)

    Pubmed Id

  • 21121297
  • Start Page

  • 8062
  • End Page

  • 8071
  • Volume

  • 10
  • Issue

  • 12