TRUNEC, David, Zdeněk NAVRÁTIL, Juliána TOMEKOVÁ, Věra MAZÁNKOVÁ, Sandra ĎURČÁNYOVÁ and Anna ZAHORANOVÁ. Chemical composition of gaseous products generated by coplanar barrier discharge in air and N2/O2 mixtures. Plasma Sources Science and Technology. IOP Publishing Ltd, 2022, vol. 31, No 11, p. 1-13. ISSN 0963-0252. Available from: https://dx.doi.org/10.1088/1361-6595/ac9c8f.
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Basic information
Original name Chemical composition of gaseous products generated by coplanar barrier discharge in air and N2/O2 mixtures
Name in Czech Chemické složení plynných produktů generovaných v koplanárním bariérovém výboji ve vzduchu a směsích N2/O2
Authors TRUNEC, David (203 Czech Republic, guarantor, belonging to the institution), Zdeněk NAVRÁTIL (203 Czech Republic, belonging to the institution), Juliána TOMEKOVÁ (703 Slovakia), Věra MAZÁNKOVÁ (203 Czech Republic), Sandra ĎURČÁNYOVÁ (703 Slovakia) and Anna ZAHORANOVÁ (703 Slovakia).
Edition Plasma Sources Science and Technology, IOP Publishing Ltd, 2022, 0963-0252.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10305 Fluids and plasma physics
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.800
RIV identification code RIV/00216224:14310/22:00127318
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1088/1361-6595/ac9c8f
UT WoS 000885188500001
Keywords in English 52.80.Hc; 52.70.Kz
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 22/2/2024 09:55.
Abstract
Absolute densities of gaseous products generated by coplanar dielectric barrier discharge in N2/O2 mixtures and in ambient air were determined using Fourier transform infrared (FTIR) spectroscopy. A theoretical model containing up to four molecular absorption cross sections was used to split the peaks overlapping in the FTIR spectra. The product densities were determined for a wide range of applied input powers (100–400 W). Ozone (O3) and nitrogen oxides (N2O, NO, NO2 and N2O5) were identified as the stable products of the discharge in N2/O2 mixtures, HNO2, HNO3 and CO2 were steadily present in the gas coming from the discharge in ambient air. It was found that the actual product composition strongly depends on the gas temperature. At low input power with the low gas temperature, O3 density was high and the NO and NO2 densities were very low. At a specific input power (and the gas temperature) O3 disappeared, while NO density started to increase gradually and NO2 density increased steeply. N2O5 density increased at low input power but decreased suddenly at the same temperature when O3 density decreased. The influence of the gas temperature on the discharge product composition was also confirmed by the 0D chemical kinetic model and by temperature measurement. The maximal ozone density reached approximately 2.7 × 1023 m−3 for the input power below 150 W and the gas mixture N2:O2 40:60. Density of 2.6 × 1022 m−3 was obtained for NO2 in the same gas mixture above 250 W.
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