Abstract
The centrifugal jet spinning (CJS) method has been developed to enable large-scale synthesis of barium titanate nanofibers. Barium titanate nanofibers with fiber diameters down to 50nm and grain sizes around 25nm were prepared with CJS by spinning a sol–gel solution of barium titanate and poly(vinylpyrrolidone) with subsequent heat treatment at 850°C. XRD and FTIR analyses demonstrated high purity and tetragonal perovskite structured barium titanate nanofibers. SEM and TEM images confirm the continuous high aspect ratio structure of barium titanate nanofibers after heat treatment. It is demonstrated that the CJS technique offers a highly efficient method for large-scale fabrication of ceramic nanofibers at production rates of up to 0.3g/min.
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