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Number of results

Journal

2015 | 13 | 1 |

Article title

Generation of High Frequency Pin-hole Discharge
in Water Solutions

Content

Title variants

Languages of publication

EN

Abstracts

EN
This paper presents results on electric discharge
generation by high frequency high voltage (15–100 kHz)
in NaCl solutions with different initial conductivity
(100–1300 mS cm-1), and compares them with DC discharge
in the same electrode configuration. A batch plasma reactor
in the pin-hole configuration contained a ceramic dielectric
barrier separating two planar stainless steel electrodes;
barrier thickness of 0.6 mm and pin-hole diameter of
0.6 mm was used. Lissajous charts were evaluated from
electric measurements for different discharge phases
(electrolysis, bubble formation and discharge regular
operation). Breakdown moments for different solution
conductivities were determined from discharge power
evaluation as a function of applied frequency. Breakdown
voltage amplitude was decreased by the increasing
conductivity in both regimes while frequency and current
decreased. Changes of physical parameters (temperature,
solution conductivity and pH) as well as production of
hydrogen peroxide at different solution conductivities were
compared. Solution conductivity was increased in both
discharge regimes and with the initial conductivity value.
Solution temperature was increased by the discharge in
both regimes and with the increasing initial conductivity,
too. Solution pH dropped to acidic conditions when HF or
DC positive regime was applied while it was enhanced by
DC negative regime.

Publisher

Journal

Year

Volume

13

Issue

1

Physical description

Dates

accepted
17 - 11 - 2014
received
28 - 11 - 2013
online
30 - 12 - 2014

Contributors

  • Faculty of Chemistry, Brno
    University of Technology, Purkyňova 464/118, 612 00 Brno,
    Czech Republic
  • Faculty of Chemistry, Brno
    University of Technology, Purkyňova 464/118, 612 00 Brno,
    Czech Republic
  • Faculty of Chemistry, Brno
    University of Technology, Purkyňova 464/118, 612 00 Brno,
    Czech Republic

References

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  • [2] Sugiarto A.T., Ito S., Ohshima T., Sato M., Skalný J.D.,Oxidative decoloration of dyes by pulsed discharge in water,J. Electrostatics, 2003, 58, 135-145.
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  • [8] Ceccato P., Rousseau A., In: Proceedings of 28th InternationalConference on Phenomena in Ionized Gases, (15-20 July 2007,Praha, Czech Republic), 2007, 1172-1174.
  • [9] Locke B.R., Lukes P., Brisset J-L., In: V.I. Parvulescu, M. Magureanu,P. Lukes (Eds.), Plasma Chemistry and Catalysis in Gases andLiquids (Wiley-VCH, 2012), DOI: 10.1002/9783527649525.ch6[Crossref]
  • [10] Stará Z., Krčma F., Degradation of Organic Dyes Versus H2O2Generation During the DC Diaphragm Discharge Treatment inWater Solutions, Acta Physica Slovaca, 2005, 55, 515-519.
  • [11] Stará Z., Krčma F., Procházková J., Physical Aspects ofDiaphragm Discharge Creation Using Constant DC High Voltagein Electrolyte Solution, Acta Technica CSAV, 2008, 53, 277-286.
  • [12] Joshi A.A., Locke B.R., Arce P., Finney W.C., Formation of hydroxylradicals, hydrogen peroxide and aqueous electrons by pulsedstreamer corona discharge in aqueous solution, J. Hazard.Mater., 1995, 41, 3-30.
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  • [14] Wagner H.E., Brandenburg R., Kozlov K.V., Sonnenfeld A.,Michel P., Behnke J.F., The barrier discharge: basic propertiesand applications to surface treatment, Vacuum, 2003, 71, 417-436.
  • [15] Eisenberg G.M., Colorimetric determination of hydrogenperoxide, Ind. Eng. Chem., Anal. Ed., 1943, 15, 327-328.[Crossref]
  • [16] Teslenko V.S., Drozhzhin A.P., Kartashov A.M., Autooscillationsgenerated during a diaphragm discharge in an electrolyte, Tech.Phys. Lett., 2001, 27, 883-885.
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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_1515_chem-2015-0080
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