P2.7.3 Gas sensing properties of TiO2 - SnO2 nanomaterials

B. Lyson-Sypien, A. Czapla, M. Lubecka, K. Zakrzewska, M. Radecka, A. Kusior, A. G. Balogh, S. Lauterbach & H.-J. Kleebe
Nanocomposites of TiO2/SnO2 for hydrogen and ammonia detection are compared with complex oxides that belong to TiO2/SnO2 system. Nanocomposites have been prepared by mechanical mixing of nanopowders with different specific surface area SSA=159 m2/g for TiO2 and SSA=21 m2/g for SnO2 as determined from BET measurements. Complex oxides have been synthesized by sol - gel method from organic precursor of TTIP and SnCl2*2H2O. The resulting SSA=91 m2/g has turned out to be larger for 50...