Abstract
Titanium dioxide (TiO 2) nanofibers were fabricated by electrospinning a hybrid solution, which is a mixture of the TiO 2 sol precursor, polymer, and solvent. The structure and gas sensing properties of TiO 2 nanofibers were investigated. By calcining at 600 °C, the polymeric components were decomposed and a multi-layered random network structure of TiO 2 nanofibers was obtained. Polycrystalline TiO 2 nanofibers consist of tetragonal anatase and rutile TiO 2 phases. The diameter ranged from 400 nm to 500 nm and the grain size was about 15 nm. The TiO 2 nanofibers-based sensor exhibited response to CO concentration as low as 1 ppm at 200 °C.
Published Version
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