One-Dimensional V2O5/TiO2 Heterostructures for Chemiresistive Ozone Sensors
Source abstract
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 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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of Nanostructured Multifunctional Materials, Department of Physics, Federal University of Sao Carlos, UFSCar, Sao Carlos, Brazil 13565-905
Aix Marseille Université, Université de Toulon, CNRS, IM2NP, Marseille, France 13013
University of Sao Paulo−USP, Sao Carlos, SP, Brazil 13566-590
Laboratorio Microscopias Avanzadas, Instituto de Nanosciencia de Aragon, Universidad de Zaragoza, 50018 Zaragoza, Spain
ARAID, 50018 Zaragoza, Spain
Instituto de Ciencias de Materiales Aragon, CSIC-U. Zaragoza, 50009 Zaragoza, Spain
Funding
???Government of Aragon???
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