Gas sensing properties of metal oxide nanopowders (ZnO, TiO2, WO3, SnO2) with average diameters of 40-60 nm were analyzed by room-temperature photoluminescence spectroscopy. The influence of gas environment (O2, N2, H2, CO, CO2) on the emission intensity was investigated for metal oxide nanopowders with surface doped by impurities (Pt, Ag, Au, Sn, Ni or Cu). Established physicochemical regulari...

Ti- and Nb- containing NiO catalysts have been synthesized by two different preparation methods: i) precipitation (Me-Ni-O oxides, Me = Nb or Ti), in order to prepare promoted catalysts; ii) wet impregnation on TiO2 NbOx supports, diluted/supported catalysts. The also characterized tested the oxidative dehydrogenation of ethane. catalytic performance Nb-promoted strongly depends composition, al...

The need to develop new electrochemical energy storage and conversion devices requires the creation of new, available, low-cost high-performance electrocatalytic materials, which can be produced as coatings by electrodeposition technique. electrodeposited composite based on nickel seem very promising in this context. We studied corrosion resistance Ni–TiO2 fabricated method using a plating solu...