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Article Dans Une Revue ACS Applied Nano Materials Année : 2019

One-Dimensional V 2 O 5 /TiO 2 Heterostructures for Chemiresistive Ozone Sensors

Résumé

Over the last decades, there has been considerable interest in the synthesis of one-dimensional (1D) metal oxide nanostructures that can be used in gas sensor devices. Heterostructures, obtained by a combination of different semiconductor nanomaterials with different band energies, have been extensively studied in order to enhance their gas-sensing performance. In this context, our present study focuses on the investigation of chemiresistive-sensing capabilities of a combination of TiO2 nanoparticles and V2O5 nanowires obtained via hydrothermal treatment of the peroxo-metal complex. The formation of V2O5/TiO2 heterostructures was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) measurements. This study also proposes an efficient approach to produce 1D V2O5/TiO2 heterostructures with a good range of detection (0.09–1.25 ppm) and remarkable ozone-sensing properties related to repeatability and selectivity.
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hal-02196747 , version 1 (06-02-2024)

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Waldir Avansi, Ariadne Catto, Luís F da Silva, Tomas Fiorido, Sandrine Bernardini, et al.. One-Dimensional V 2 O 5 /TiO 2 Heterostructures for Chemiresistive Ozone Sensors. ACS Applied Nano Materials, 2019, ⟨10.1021/acsanm.9b00578⟩. ⟨hal-02196747⟩
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