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Proceedings 2017, 1(4), 455; doi:10.3390/proceedings1040455

2D SnS2—A Material for Impedance-Based Low Temperature NOx Sensing?

1
Department of Functional Materials, University of Bayreuth, Bayreuth, Germany
2
School of Engineering, RMIT University, Melbourne, Australia
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Authors to whom correspondence should be addressed.
Published: 9 August 2017
(This article belongs to the Proceedings of Eurosensors 2017)
Download PDF [438 KB, uploaded 1 September 2017]

Abstract

The sensor signal of tin disulfide (SnS2), a two-dimensional (2D) group-IV dichalcogenide, deposited as a film on a conductometric transducer is investigated at 130 °C. The focus is on the detection of the total NOx concentration. Therefore, the sensor response to NO and NO2 at ppm- and sub-ppm level at low operating temperature is determined. The results show that the sensing device provides a high sensor signal to NO and NO2 even at concentrations of only 390 ppb NOx. Both nitrous components, NO and NO2, yield the same signal, which offers the opportunity to sense the total concentration of NOx.
Keywords: 2-dimensional SnS2; conductometric sensor; total NOx sensing; sub-ppm NOx; low temperature 2-dimensional SnS2; conductometric sensor; total NOx sensing; sub-ppm NOx; low temperature
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

Schönauer-Kamin, D.; Li, Y.; Wlodarski, W.; Ippolito, S.; Moos, R. 2D SnS2—A Material for Impedance-Based Low Temperature NOx Sensing? Proceedings 2017, 1, 455.

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