Abstract
The titanium dioxide nanostructured thin films have been obtained using a sol-gel process at different crystallization temperatures. The influence of both the phase composition and the particle dispersity of 2D nanomaterials on their gas-sensing properties has been evaluated. The TiO2 nanostructured thin film prepared from xerogel under the mildest crystallization conditions (500 °C, 1 h) exhibited high sensitivity and selectivity in oxygen detection within a broad range of its concentrations at 350 °C.
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