Plasmachemical Processes Induced by Underwater Discharge Operated in Microsecond and Nanosecond Pulse Duration Range

0469700 - ÚFP 2017 RIV US eng A - Abstract
Lukeš, Petr - Člupek, Martin - Babický, Václav - Pongrác, Branislav - Hoffer, Petr - Šimek, Milan
Plasmachemical Processes Induced by Underwater Discharge Operated in Microsecond and Nanosecond Pulse Duration Range.
Symposium PM2: Plasma Processing via Liquid for Life Sciences and Environmental Applications. Boston: Materials Research Society, 2016. PM2.3.02.
[Symposium PM2: Plasma Processing via Liquid for Life Sciences and Environmental Applications. 27.11.2016-02.12.2016, Boston]
R&D Projects: GA ČR(CZ) GA15-12987S
Institutional support: RVO:61389021
Keywords : spectroscopy * plasma * plasmachemical processes
Subject RIV: BL - Plasma and Gas Discharge Physics

In this work, nanosecond pulsed corona discharge in deionized water was studied by means of time resolved optical emission spectroscopy and by chemical methods. FID generator was used for high-voltage pulse generation of pulse length 7 ns (FWHM) and amplitude up to 110 kV. Chemical activity of the nanosecond discharge was evaluated by measuring the hydrogen peroxide production in water and using phenol as chemical probe. Comparison with the pulsed discharge plasma in liquid operated in microsecond pulse duration range was made in order to assess effects of the input pulse power parameters (pulsed duration) on plasmachemical processes induced by electrical discharge plasma in the liquid. Fundamental issues regarding the mechanism of OH radical formation by the discharge plasma in water will be addressed
Permanent Link: http://hdl.handle.net/11104/0267518