Oddelenie environmentálnej fyziky - Prihlásený: student
Katedra astronómie, fyziky Zeme a meteorológie, FMFI UK, Bratislava,

Generation of honeycomb discharge assisted by micro-hollow surface dielectric barrier discharge

Cimerman R., Hensel K.
Int. J. Plasma Environ. Sci. Technol. 15 (1), e01003, 13 pp (2021)

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Abstrakt:

The combination of nonthermal plasma with honeycomb catalysts still represents one of the major challenges in plasma catalysis from the technological point of view. The objective of this paper was to investigate a generation of stable discharge inside the channels of honeycomb catalyst (honeycomb discharge) with the assistance of micro-hollow surface dielectric barrier discharge generated by a perforated ceramic substrate. The surface discharge driven by AC high voltage served as a source of nonthermal plasma and was coupled in series with DC high voltage applied across the honeycomb channels. The honeycomb catalyst was emulated by a bundle of glass capillary tubes that enabled optical emission spectroscopy of the discharge. We investigated the effect of applied AC and DC high voltages, air flow rate and relative humidity on stability and light emission intensity of the honeycomb discharge. We found that generation of honeycomb discharge is positively supported by an increase of air flow rate as well as air relative humidity. A chemical activity of the honeycomb discharge in terms of ozone O3 production was also briefly examined. The results showed that O3 concentration increased with an increase of amplitude of both AC and DC high voltages and was found higher for positive than for negative polarity of DC high voltage.

Citácie:

1.)	Arshad M. Y., Ahmad A. S., Mularski J., Modzelewska A., Jackowski M., Pawlak-Kruczek H., Niedzwiecki L.: Pioneering the Future: A Trailblazing Review of the Fusion of Computational Fluid Dynamics and Machine Learning Revolutionizing Plasma Catalysis and Non-Thermal Plasma Reactor Design, Catalysts 14 (1), 40 (2024), citation no. 132 (2024) -------------
2.)	X. Chen, H.-H. Kim, T. Nozaki: Plasma catalytic technology for CH4 and CO2 conversion: A review highlighting fluidized-bed plasma reactor, Plasma Process. Polym. 2023, e2200207 (2023), citation no. 44 (2023) -------------
3.)	M. Tański, A. Reza, D. Przytula, K. Garasz: Ozone generation by surface barrier discharge, Applied Sciences 2023, 13 (12), 7001 (2023), citation no. 55 (2023) -------------
4.)	Y. Kawada, H. Endo, H. Yamanaka, H. Shimizu: Combined of dielectric barrier discharge and electrolysis methods to generate nitrogen compounds in aqueous solution from room air, Int. J. Plasma Environ. Sci. Technol. 15 (2), e02001 (2021), citation no. 2, SCOPUS (2021) -------------
5.)	A. Waskow, L. Ibba, M. Leftley, A. Howling, P. F. Ambrico, I. Furno: An in situ FTIR study of DBD plasma parameters for accelerated germination of Arabidopsis thaliana seeds, Int. J. Mol. Sci. 22, 11540 (2021), citation no. 21, INDEX (2021) -------------