Synthesis of Zirconia Oxide (ZrO<sub>2</sub>) Nanofibers on Zirconnia Substrates by Ultrasonic Spray Pyrolysis
- 1 EcoTopia Science Institute, Nagoya University, Nagoya, Japan; Global Research Center for Environment and Energy Based on Nanomaterials Science, Nagoya, Japan
- 2 Graduate School of Engineering, Nagoya, Japan
- 3 EcoTopia Science Institute, Nagoya University, Nagoya, Japan; Global Research Center for Environment and Energy Based on Nanomaterials Science, Nagoya, Japan
Abstract
Zirconia oxide (ZrO 2 ) nanofibers were synthesized using Phosphorus/water mixture as catalyst by ultrasonic spray pyrolysis CVD on the zirconia substrate at 900° C for 1 h in N 2 gas. Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM) examinations show that all the synthesized nanofibers have uniform surface morphology and their diameters are in the range of 100 nm. The HRTEM selected-area electron diffraction pattern (SAED) show s that crystalline ZrO 2 phase exist in the nanofibers, and the energy-dispersive x-ray spectroscopy (EDS) results show that the elements of Zr and O are uniformly distributed across the nanofiber matrix. The phosphorus atoms corroded the entire Zirconia substrate surface, and the Zirconia-Phosphorus liquid-catalyzed the solid-liquid-solid mechanism is proposed to explain the growth of the nanofibers.
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