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Materials Science and Engineering B 123 (2005) 252258 Short communication

Summary: Materials Science and Engineering B 123 (2005) 252­258
Short communication
Processing and characterization of electrospun Y2O3-stabilized
ZrO2 (YSZ) and Gd2O3-doped CeO2 (GDC) nanofibers
Abdul-Majeed Azad, Thomas Matthews, Jessica Swary
Department of Chemical and Environmental Engineering, The University of Toledo, 3052 Nitschke Hall,
Toledo, OH 43606-3390, USA
Received 20 April 2005; received in revised form 26 July 2005; accepted 14 August 2005
The technique of electrospinning was employed to fabricate uniform one-dimensional (1-D) inorganic­organic composite nanofibers from
alcoholic solutions containing polyvinyl pyrrolidone (PVP) and suitable aqueous precursors of yttrium and zirconium ions in one case and gadolin-
ium and cerium ions in the other. Upon firing and sintering under carefully pre-selected time­temperature profiles (heating rate, temperature
and soak time), ceramic nanofibers retaining the original morphological features observed in the as-spun composition were obtained. Analyti-
cal tools, such as simultaneous TG­DSC, Raman spectroscopy and SEM were employed to elucidate the pathway of ceramic phase formation
and the systematic evolution of morphological features in the spun and the processed fibers. X-ray diffraction was used to identify the crys-
talline fate of the final products. It was found that several millimeter long, uniform YSZ and GDC nanofibers of high phase purity could be
© 2005 Elsevier B.V. All rights reserved.
Keywords: Nanofibers; YSZ; GDC; Electrospinning
1. Introduction


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


Collections: Materials Science; Energy Storage, Conversion and Utilization