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Article

Simultaneous Detection of NH3 and NO2 by Modified Impedance Spectroscopy in Sensors Based on Carbon Nanotubes

1
Faculty of Electrical Engineering, University of West Bohemia, 301 00 Pilsen, Czech Republic
2
Sensors Department, Tesla Blatna a.s., 388 01 Blatna, Czech Republic
*
Author to whom correspondence should be addressed.
Academic Editors: Saverio Latorrata and Vijay Kumar Thakur
Energies 2022, 15(3), 855; https://doi.org/10.3390/en15030855
Received: 30 November 2021 / Revised: 11 January 2022 / Accepted: 24 January 2022 / Published: 25 January 2022
There are many gaseous substances that need to be monitored for possible damage to health or the environment. This requires many sensors. The solution to reducing the number of sensors is to use one sensor to detect several gaseous substances simultaneously. Efforts to simplify sensor systems thus lead to the use of a sensor with a suitable sensitive layer and to finding a suitable method of detecting individual gaseous substances within one sensor. The aim is to find a suitable method to detect various gaseous substances acting on the sensor. For this purpose, modified impedance spectroscopy in the high-frequency range is applied, where the scattering parameters of the sensor based on carbon nanotubes are measured under the action of NO2 and NH3 gases. For this method of detection of gaseous substances, a suitable sensor platform structure was designed to enable the measurement of the electrical properties of the sensor in the GHz range. Based on the obtained results, it is possible to use one sensor to detect different types of gaseous substances. View Full-Text
Keywords: impedance spectroscopy; scattering parameters; sensor; gas detection; carbon nanotubes impedance spectroscopy; scattering parameters; sensor; gas detection; carbon nanotubes
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MDPI and ACS Style

Blecha, T.; Smitka, V.; Bodnar, M.; Stulik, J. Simultaneous Detection of NH3 and NO2 by Modified Impedance Spectroscopy in Sensors Based on Carbon Nanotubes. Energies 2022, 15, 855. https://doi.org/10.3390/en15030855

AMA Style

Blecha T, Smitka V, Bodnar M, Stulik J. Simultaneous Detection of NH3 and NO2 by Modified Impedance Spectroscopy in Sensors Based on Carbon Nanotubes. Energies. 2022; 15(3):855. https://doi.org/10.3390/en15030855

Chicago/Turabian Style

Blecha, Tomas, Vaclav Smitka, Michal Bodnar, and Jiri Stulik. 2022. "Simultaneous Detection of NH3 and NO2 by Modified Impedance Spectroscopy in Sensors Based on Carbon Nanotubes" Energies 15, no. 3: 855. https://doi.org/10.3390/en15030855

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