In-situ diffraction studies on the crystallization and crystal growth in anodized TiO2 nanofibres

Uniform and highly ordered TiO2 nano-fibers were synthesized using anodic oxidation of Ti foils. The crystallization and crystal growth of TiO2 nano-fiber arrays were characterized using in-situ synchrotron radiation diffraction at the temperature range 25–700 °C. The anodized TiO2 was initially amo...

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Bibliographic Details
Main Authors: Low, It-Meng, Yam, F., Pang, W.
Format: Journal Article
Published: Elsevier BV 2012
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/7028
Description
Summary:Uniform and highly ordered TiO2 nano-fibers were synthesized using anodic oxidation of Ti foils. The crystallization and crystal growth of TiO2 nano-fiber arrays were characterized using in-situ synchrotron radiation diffraction at the temperature range 25–700 °C. The anodized TiO2 was initially amorphous but crystallized to anatase at ~400 °C and to rutile at ~550–600 °C. The time of anodization has no influence on crystal growth and has an appreciable affect on the fraction of anatase-to-rutile transformation.