Original title: Modification of TiO2 electronic properties by means of chemical treatment (doping)
Authors: Zukalová, Markéta ; Lásková, Barbora ; Procházka, Jan ; Bastl, Zdeněk ; Havlíček, D. ; Kavan, Ladislav
Document type: Papers
Conference/Event: New trends in application of photo and electro catalysis. The Czech-Austrian workshop /4./, Hnanice (CZ), 2011-12-05 / 2011-12-07
Year: 2012
Language: eng
Abstract: The product of the reaction of nanofibrous anatase with ammonia in gas phase is nanofibrous cubic titanium oxynitride, c-TiO2N3. In contrary to the preparation of cubic titaniurn oxynitride from microcrystalline TiO2, requiring temperatures above 800°C, the conversion of nanofibrous TiO2 to TiO2N3 is completed at about 500°C due to its enhanced chemical reactivity. This conversion is fully reversible; the product of the back reaction is again nanofibrous Ti02. By the thermal treatment of nanofibrous anatase in H2 flow at 800°C for 2 hours the mixture of black disordered anatase, rutile and titanium suboxides was prepared. Evidently, particular phases can be synthesized simply by tuning the temperature of the treatment, which is a subject of the further research.
Keywords: doping; titanium dioxide
Project no.: CEZ:AV0Z40400503 (CEP), IAA400400804 (CEP), KAN200100801 (CEP)
Funding provider: GA AV ČR, GA AV ČR
Host item entry: New trends in application of photo and electro catalysis. Proceedings of the 4th Czech-Austrian workshop, ISBN 978-80-7080-809-2

Institution: J. Heyrovsky Institute of Physical Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0222095

Permalink: http://www.nusl.cz/ntk/nusl-155364


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Research > Institutes ASCR > J. Heyrovsky Institute of Physical Chemistry
Conference materials > Papers