Synthesis and Structure Properties of Free-Standing TiO₂ Nanotube Arrays

Abstract:

TiO₂ nanotube arrays were made on the titanium foil by the method of anodic oxidation. Large-area crystallized free-standing TiO₂ nanotube arrays were fabricated by a two-step anodization, and then crystallized by different heat-treatment processes. The morphology and structure of the TiO₂ nanotube arrays were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The results show that the diameter of the TiO₂ nanotube at the voltage range of 50V~65V was about 100nm. Anatase phase is the unique phase observed in free-standing TiO₂ arrays annealed at the temperature of 400°C~610°C. However, crystallographic orientation of anatase phase is influenced by the annealing temperature.

• Periodical: Applied Mechanics and Materials (Volume 320)
• Pages: 30-34
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.320.30
• Online since: May 2013
• Authors: Juan Chen, Chen Guang Yang, Hong Wang Zhang, Hao Zeng, Shu Li He
• Keywords: Anodic Oxidation, Crystal Structure, TiO₂ Nanotube Array (TNAs)

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