Journal
JOURNAL OF MATERIALS SCIENCE
Volume 48, Issue 21, Pages 7774-7779Publisher
SPRINGER
DOI: 10.1007/s10853-013-7614-0
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Poly(vinyl alcohol)-niobium oxide (Nb2O5) composite nanofibers (precursors) were formed by electrospinning employing water as a solvent for the spinning solution. The precursors were converted into Nb2O5 or carbide (NbC) nanofibers by heating them in air or Ar. Hexagonal Nb2O5 nanofibers with high-specific surface area were obtained by heat-treatment of the precursors in air. NbC nanofibers could be obtained below theoretical temperatures calculated from thermodynamics data, indicating that the precursor is a nano-scale mixture of Nb and carbon sources.
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