Research Progress on the Preparation of Ceramic Hollow Nanofibers by Electro-spinning

Ceramic hollow nanofibers possess unique one-dimensional tubular nanostructure, which have potential application prospects in the fields of microelectronics, catalysts, gas sensors and photoelectric transducers. The re- search progress on ceramic hollow nanofibers prepared by electrospinning is reviewed. The tendency of studies on fabricating ceramic hollow nanofibers through coaxial electrospinning, single capillary electrospinning and postpro- cessing is mainly introduced. And the discussion on the formation mechanism of hollow structure of ceramic nanofi- bers is presented with emphasis on single capillary electrospinning method, including phase transformation mechanism, gas evaporating mechanism and Kirkendall effect. The application prospect and disadvantages are also summarized.