IR Laser-Induced Carbothermal Reduction of Titanium Monoxide: Carbon-Phase Shield to Nanosized TiO Oxidation

0357215 - ÚCHP 2011 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Jandová, Věra - Bastl, Zdeněk - Šubrt, Jan - Pola, Josef
IR Laser-Induced Carbothermal Reduction of Titanium Monoxide: Carbon-Phase Shield to Nanosized TiO Oxidation.
Conference Proceedings. Ostrava: TANGER, 2010, s. 381-384. ISBN 978-80-87294-19-2.
[NANOCON 2010. International Conference /2./. Olomouc (CZ), 12.10.2010-14.10.2010]
Grant CEP: GA AV ČR IAA400720619; GA MŠMT LC523
Výzkumný záměr: CEZ:AV0Z40720504; CEZ:AV0Z40400503; CEZ:AV0Z40320502
Klíčová slova: titanium monoxide nanoparticles * carbon-protection in air * laser-induced carbothermal reduction
Kód oboru RIV: CH - Jaderná a kvantová chemie, fotochemie

Pulsed IR laser-irradiation of titanium monoxide (TiO) leads to ablation and when carried out in gaseous benzene (1-5 Torr) to simultaneous dielectric breakdown of benzene into low molecular carbonaceous species. Both processes allow carbothermal reduction of ablated TiO particles with agglomerating carbonaceous species and deposition of carbon-coated TiO nanoparticles remarkably stable towards oxidation in air. The reported results suggest potential for protection of reactive gas-phase produced nanoparticles by carbon phase.
Trvalý link: http://hdl.handle.net/11104/0195538