  Copper oxide II is a p-type semiconductor that can be used in several
applications. Focusing on producing such material using an easy and low-cost
technique, we followed an acetate one-pot-like route for producing a polymer
precursor solution with different acetates:PVP (polyvinylpyrrolidone) weight
ratios. Then, composite nanofibers were produced using the solution blow
spinning (SBS) technique. The ceramic CuO samples were obtained after a
calcination process at 600 oC for two hours, applying a heating rate of 0.5
oC/min. Non-woven fabric-like ceramic samples with average diameters lower than
300 nm were successfully obtained. SEM images show relatively smooth fibers
with a granular morphology. XRD shows the formation of randomly oriented grains
of CuO. In addition, FTIR and XRD analyses show the CuO formation before the
heat treatment. Thus, a chemical reaction sequence was proposed to explain the
results.
