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Microscopic and surface analytical characterization of TiO2 nanotubes produced by anodic oxidation and thermal treatment 

Marcin Pisarek 1,2Agata Roguska 1Andrzej Kudelski 3Maciej M. Spychalski 1Malgorzata Lewandowska 1Maria Janik-Czachor 2Krzysztof J. Kurzydlowski 1

1. Warsaw University of Technology, Faculty of Materials Science and Engineering (InMat), Wołoska 141, Warszawa 02-507, Poland
2. Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, Warszawa 01-224, Poland
3. University of Warsaw, Department of Chemistry, Pasteura 1, Warsaw, Warszawa 02-093, Poland


Titanium oxide nanotube arrays were fabricated in a mixture of glycerol, deionized water and low concentration solution of NH4F (0.86 wt. %).  Well-ordered nanotube arrays of titania ~1.0 µm high and about 100-120 nm in diameter have been prepared via electrochemical oxidation at constant voltage (25V). SEM, X-ray diffraction, Raman spectroscopy, AES and XPS surface analytical techniques were used to characterize the self-organized porous layers, and the effect of annealing at 200 – 600oC on their morphology, structure and mechanical stability. Our results show, that the nanotubular structure was stable within the temperature range from 200oC up to 600oC, but their crystallographic structure changed from amorphous, via anatase to the rutile phase.


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Presentation: Poster at E-MRS Fall Meeting 2009, Symposium H, by Marcin Pisarek
See On-line Journal of E-MRS Fall Meeting 2009

Submitted: 2009-05-07 11:32
Revised:   2009-06-07 00:48