Preparation and gas sensing properties of vanadium oxide nanobelts coated with semiconductor oxides

Abstract Vanadium oxides nanobelts coated with Fe 2 O 3 , TiO 2 and SnO 2 nanoparticles have been prepared by mild hydrothermal reaction. The gas sensitivity of the coated nanobelts was investigated compared with pure vanadium oxide nanobelts. The experiments showed that the nanobelts coated with nanosize metal oxides offered better sensitivity than the uncoated nanobelts. Comparison of the gas sensing properties was performed for V 2 O 5 nanobelts with different coatings.