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BULLETIN OF THE POLISH ACADEMY OF SCIENCES TECHNICAL SCIENCES
 

Summary: BULLETIN OF THE POLISH ACADEMY OF SCIENCES
TECHNICAL SCIENCES
Vol. 55, No. 2, 2007
Fabrication and characterization of 1-D alumina (Al2O3)
nanofibers in an electric field
A.-M. AZAD
, M. NOIBI, and M. RAMACHANDRAN
Department of Chemical and Environmental Engineering, The University of Toledo, 3052 Nitschke Hall, 2801 W. Bancroft St.,
Toledo, OH 43606-3390, USA
Abstract. The technique of electrospinning was employed to fabricate uniform one-dimensional inorganic-organic composite
nanofibers at room temperature from a solution containing equal volumes of aluminum 2, 4-pentanedionate in acetone and
polyvinylpyrrolidone in ethanol. Upon firing and sintering under carefully pre-selected time-temperature profiles (heating rate,
temperature and soak time), high-purity and crystalline alumina nanofibers retaining the original morphological features present
in the as-spun composite (cermer) fibers were obtained. Tools such as laser Raman spectroscopy, scanning and transmission
electron microscopy together with energy dispersive spectroscopy and selected area electron diffraction were employed to follow
the systematic evolution of the ceramic phase and its morphological features in the as-spun and the fired fibers. X-ray diffraction
was used to identify the crystalline fate of the final product.
Key words: electrospinning, alumina nanofibers, electron microscopy, Raman spectroscopy, X-ray diffraction.
1. Introduction
Recently, for the fabrication of nanostructures bottom-up

  

Source: Azad, Abdul-Majeed - Department of Chemical and Environmental Engineering, University of Toledo

 

Collections: Materials Science; Energy Storage, Conversion and Utilization