Beilstein J. Nanotechnol.2016,7, 1718–1726, doi:10.3762/bjnano.7.164
TiO2-based sensing materials were investigated. 2D TiO2 thin films crystallized mainly in the form of rutile, while the flower-like3Dnanostructures as anatase. The sensor based on the 2D TiO2 showed the best performance for H2 detection, while the flower-like3Dnanostructures exhibited enhanced
selectivity to CO(CH3)2 after sensitization by SnO2 nanoparticles. The sensor response time was of the order of several seconds. Their fast response, high sensitivity to selected gas species, improved selectivity and stability suggest that the SnO2-decorated flower-like3Dnanostructures are a promising
material for application as an acetone sensor.
Keywords: acetone; flower-like3Dnanostructures; gas sensors; selectivity; titanium dioxide; Introduction
The market for resistive-type gas sensors is dominated by materials developed on the base of thin or thick layers composed of polycrystalline metal
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Figure 1:
Schematic view of gas sensor measuring system.