Modification of TiO2 electronic properties by means of chemical treatment (doping)

0393331 - ÚFCH JH 2014 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Zukalová, Markéta - Lásková, Barbora - Procházka, Jan - Bastl, Zdeněk - Havlíček, D. - Kavan, Ladislav
Modification of TiO2 electronic properties by means of chemical treatment (doping).
New trends in application of photo and electro catalysis. Proceedings of the 4th Czech-Austrian workshop. Prague: Institute of Chemical Technology, 2012 - (Krýsa, J.; Klusoň, P.), s. 34-36. ISBN 978-80-7080-809-2.
[New trends in application of photo and electro catalysis. The Czech-Austrian workshop /4./. Hnanice (CZ), 05.12.2011-07.12.2011]
Grant CEP: GA AV ČR IAA400400804; GA AV ČR KAN200100801
Výzkumný záměr: CEZ:AV0Z40400503
Klíčová slova: titanium dioxide * doping
Kód oboru RIV: CG - Elektrochemie

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.
Trvalý link: http://hdl.handle.net/11104/0222095