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Proceedings 2017, 1(4), 442; doi:10.3390/proceedings1040442

Tin Dioxide-Graphene Based Chemi-Device for NO2 Detection in the Sub ppm Range

1
Nanosensors and Intelligent System group (NoySI), Instituto de Tecnologías Físicas y de la Información ITEFI-CSIC, 28006 Madrid, Spain
2
Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA), P.le E. Fermi 1, Portici, I-80055 Naples, Italy
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 8 August 2017
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Abstract

Chemical nanodevices based on tin dioxide, graphene and a mixture of both materials were developed and characterized for NO2 detection at low concentrations. The chemiresistors were prepared by both electrospinning and drop casting. The films morphologies were investigated by scanning electron microscopy (SEM). The devices response to sub-ppm NO2 concentrations was measured from room temperature up to 300 °C. An improvement in the performance in terms of sensitivity and response time, as well as higher responses at room temperature, was obtained when a mixture of these materials is used.
Keywords: tin dioxide; graphene; nanofibers; chemi-device; sensor; nitrogen dioxide tin dioxide; graphene; nanofibers; chemi-device; sensor; nitrogen dioxide
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

Santos, J.P.; Polichetti, T.; Aleixandre, M.; Hontañón, E.; Sayago, I.; Alfano, B.; Miglietta, M.L.; Francia, G.D. Tin Dioxide-Graphene Based Chemi-Device for NO2 Detection in the Sub ppm Range. Proceedings 2017, 1, 442.

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