Fabrication of TiO2/Carbon Composite Nanofibers by Electrospinning

提出了一种制备碳芯/二氧化钛鞘纳米纤维的新方法。采用静电纺丝结合溶胶-凝胶法制备了聚乙烯醇（PVA）/二氧化钛复合纳米纤维。通过碘蒸气稳定化和碳化，将聚乙烯醇芯中的聚乙烯醇转化为碳。产物碳/二氧化钛纳米纤维显示出比二氧化钛纳米纤维高得多的电导率。

The new method for fabricating carbon-core/titania-sheath nanofibers was developed. The method consisted of the following steps : Polyvinyl alcohol(PVA)/titania composite nanofibers were prepared by electrospinning combined with sol-gel reaction. The PVA in the core of the nanofiber was converted to carbon via the stabilization with iodine vapor and the carbonization. The product carbon/titania nanofibers showed exceedingly higher electrical conductivity than that of titania nanofibers.