Metal oxide nanostructures: preparation, characterization and functional applications as chemical sensors

Year: 2017

Authors: Zappa D., Bertuna A., Comini E., Kaur N., Poli N., Sberveglieri V., Sberveglieri G.

Autors Affiliation: Univ Brescia, Dipartimento Ingn Informaz, SENSOR, Via Valotti 9, I-25123 Brescia, Italy; CNR INO, Via Valotti 9, I-25123 Brescia, Italy.

Abstract: Preparation and characterization of different metal oxide (NiO, WO3, ZnO, SnO2 and Nb2O5) nanostructures for chemical sensing are presented. p-Type (NiO) and n-type (WO3, SnO2, ZnO and Nb2O5) metal oxide nanostructures were grown on alumina substrates using evaporation-condensation, thermal oxidation and hydrothermal techniques. Surface morphologies and crystal structures were investigated through scanning electron microscopy and Raman spectroscopy. Furthermore, different batches of sensors have been prepared, and their sensing performances towards carbon monoxide and nitrogen dioxide have been explored. Moreover, metal oxide nanowires have been integrated into an electronic nose and successfully applied to discriminate between drinking and contaminated water.

Journal/Review: BEILSTEIN JOURNAL OF NANOTECHNOLOGY

Volume: 8      Pages from: 1205  to: 1217

More Information: The research leading to these results has received funding from the European Community’s FP7-ICT-2013-10, MSP-Multi-Sensor-Platform for Smart Building Management under the project no 611887.
KeyWords: chemical sensors; electronic nose; metal oxides; nanowires
DOI: 10.3762/bjnano.8.122

Citations: 31
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