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Surface DBD in moist air for nitrogen fixation: a comparative study of pulsed versus amplitude-modulated AC powered discharge
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SYSNO ASEP 0604679 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Surface DBD in moist air for nitrogen fixation: a comparative study of pulsed versus amplitude-modulated AC powered discharge Tvůrce(i) Fujera, Jiří (UFP-V) ORCID
Hoffer, Petr (UFP-V) RID
Prukner, Václav (UFP-V) RID, ORCID
Rotondo, P. R. (IT)
Arora, Garima (UFP-V)
Jirásek, Vít (UFP-V)
Lukeš, Petr (UFP-V) RID, ORCID
Šimek, Milan (UFP-V) RID, ORCIDCelkový počet autorů 8 Číslo článku 405205 Zdroj.dok. Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 57, č. 40 (2024)Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova air ; dbd ; micro-discharge ; paw ; water Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) CEP GA24-10903S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 001270280700001 EID SCOPUS 85199283007 DOI https://doi.org/10.1088/1361-6463/ad5f99 Anotace Surface DBD (SDBD) discharge maintained in moist air in the immediate vicinity of the water surface is an effective source of reactive species for the production of plasma-activated water (PAW). In this work, we investigated the water activation process for two different DBD energization methods - i.e. using periodic HV pulses with nanosecond risetimes and amplitude-modulated HV AC. We combined UV-vis-NIR ICCD spectroscopy with electrical characteristics to determine the basic characteristics of SDBD microfilaments. Formation of N2O5/NO2/N2O/H2O2/NO2−/NO3− species was followed and the production yields of species generated in PAW (H2O2/NO2−/NO3−) were determined in a flow-through reactor under well-defined and stable discharge conditions. Both energization methods reached comparable energy efficiencies of nitrogen fixation in the range of 1-6 g kWh−1 with minimal concentrations of H2O2 (10 s μM). However, the AC-powered SDBD produced mainly NO3− with minimal NO2− (1/10 of NO3−), while in the case of pulsed SDBD the better-balanced NO2−/NO3− ratio was achieved. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2025 Elektronická adresa https://iopscience.iop.org/article/10.1088/1361-6463/ad5f99
Number of the records: 1