Composite gas sensors based on carbon and tin oxide nanoparticles

• Published in: Russian physics journal Vol. 68; no. 3; pp. 488 - 499
• Main Authors: Bogomolova, A. I., Gareev, T. I., Nerushev, O. A., Sorokin, D. V., Bannov, A. G., Smovzh, D. V.
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.03.2025; Springer Nature B.V
• Subjects: Arc discharges; Condensed Matter Physics; Electric arcs; Gas sensors; Graphene; Hadrons; Heavy Ions; Lasers; Mathematical and Computational Physics; Nanoparticles; Nitrogen dioxide; Nuclear Physics; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Room temperature; Theoretical; Tin oxides; Tin oxides; Nanoparticles; NO; sensors; Adsorption; Graphene; Arc discharge soot
• ISSN: 1064-8887; 1573-9228
• DOI: 10.1007/s11182-025-03456-6

The methods for manufacturing NO 2 sensors from carbon-tin nanoparticle composites and the results of detection of NO 2 impurities in the range of 10–40 ppm in air are presented. All sensors operate at room temperature. The sensors with arc discharge soot and tin nanoparticles demonstrate the highest sensitivity. A combination of the graphene and SnO nanoparticle layers demonstrates the lowest response time. The interaction mechanisms of sensors with low NO 2 concentrations are discussed.