PAN-based Carbonized Fibers and Metal-carbonized Fiber Nanocomposites for Thermal Transport
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Date
2010-12
Authors
Andala, D.
Ochanda, F.
Atkinson, A.
Fey, E. O.
Jones, W. E. Jr.
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Nanoscience and Nanotechnology
Abstract
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.
Description
DOI: http://dx.doi.org/10.1166/jnn.2010.3037
Keywords
Electrospinning, Nanocomposites, Polyacrilonitrile, Sthm
Citation
Journal of Nanoscience and Nanotechnology, 2010, 10, 1.