2024-03-28T23:23:59Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2081372020-07-27T04:30:43Zcom_10261_31com_10261_3col_10261_284
Avansi, Waldir Jr.
Catto, Ariadne C.
Silva, Luis F. da
Fiorido, Tomas
Bernardini, Sandrine
Mastelaro, Valmor R.
Aguir, Khalifa
Arenal, Raúl
2020-04-17T14:05:02Z
2020-04-17T14:05:02Z
2019
ACS Applied Nano Materials 2(8): 4756-4764 (2019)
2574-0970
http://hdl.handle.net/10261/208137
10.1021/acsanm.9b00578
http://dx.doi.org/10.13039/501100010067
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003593
http://dx.doi.org/10.13039/501100002322
http://dx.doi.org/10.13039/501100003329
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.
eng
openAccess
O3 sensor
Heterostructures
Hydrothermal method
Chemiresistors
One-dimensional V2O5/TiO2 heterostructures for chemiresistive ozone sensors
artículo