Abstract

One-dimensional V2O5/TiO2 heterostructures for chemiresistive ozone sensors.
AVANSI JR., Waldir; CATTO, Ariadne C.; SILVA, Luís F.; FIORIDO, Tomas; BERNARDINI, Sandrine; MASTELARO, Valmor Roberto; AGUIR, Khalifa; ARENAL, Raul.
Abstract: 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 peroxometal 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.
ACS Applied Nano Materials
v. 2, n. 8, p. 4756-4764 - Ano: 2019
    @article={002986573,author = {AVANSI JR., Waldir; CATTO, Ariadne C.; SILVA, Luís F.; FIORIDO, Tomas; BERNARDINI, Sandrine; MASTELARO, Valmor Roberto; AGUIR, Khalifa; ARENAL, Raul.},title={One-dimensional V2O5/TiO2 heterostructures for chemiresistive ozone sensors},journal={ACS Applied Nano Materials},note={v. 2, n. 8, p. 4756-4764},year={2019}}

Contact us
São Carlos Institute of Physics - IFSC
Thank you for the message! We´ll be in touch as soon as possible..