Effect of Vanadium-Ion Implantation on the Crystallization Kinetics and Phase Transformation of Electrospun TiO2 Nanofibers

The influence of vanadium-ion implantation on the thermal response of electrospun amorphous TiO₂ nanofibers was studied with reference to structural phase transformation behavior, using in situ synchrotron radiation diffraction (SRD) measurements from room temperature to 1000°C. Metal-ion implantation using an accelerated metal-ion beam has been applied to modify the electronic structure of the TiO₂ semiconductor. This chapter investigates the effects of V-ion implantation on crystallization kinetics, phase transformations, and activation energies of electrospun TiO₂ nanofibers using in situ high-temperature SRD over the temperature range of 25–1000°C. The electrospun TiO₂ nanofibers are characterized by means of scanning electron microscopy, energy dispersive X-ray spectroscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. The chapter reports the first attempt at preparing V-ion-implanted electrospun TiO₂ nanofibers and focuses on the TiO₂ phase transformation and crystallization kinetics.