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Proceedings 2017, 1(4), 460; doi:10.3390/proceedings1040460

Influence of Metal Catalyst on SnO2 Nanowires Growth and Gas Sensing Performance

1
SENSOR Laboratory, University of Brescia and CNR-INO, Via D. Valotti 9, 25133 Brescia, Italy
2
National Institute of Material Physics, Atomistilor Str. 105bis, Magurele, 077125 Bucharest, Romania
3
CNR-IBBR Via Madonna del Piano 10, Sesto Fiorentino, Firenze, Italy
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 11 August 2017
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Abstract

In the present work SnO2 nanowires were synthetized by using vapour-liquid-solid technique (VLS) on alumina substrates, using different metal nanoparticles as catalyst for the growth. In particular, the effect of Au, Sn and Pd nanoparticles was exploited. The growth was performed simultaneously on all substrates, keeping the same conditions for the three different catalysts used. Nanowires were investigated by FE-SEM, HR-TEM, and XRD measurements, confirming the morphology and the crystalline structure of the material. Moreover, conductometric sensing devices were fabricated depositing electrodes on top of these materials, and chemical sensing performances were evaluated toward some typical air pollutants.
Keywords: metal oxide nanowires; chemical sensors; tin oxide metal oxide nanowires; chemical sensors; tin oxide
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zappa, D.; Melloni, R.; Maraloiu, V.-A.; Poli, N.; Rizzoni, M.; Sberveglieri, V.; Sisman, O.; Soprani, M.; Comini, E. Influence of Metal Catalyst on SnO2 Nanowires Growth and Gas Sensing Performance. Proceedings 2017, 1, 460.

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