Generation of High Frequency Pin-hole Discharge in Water Solutions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU110548" target="_blank" >RIV/00216305:26310/15:PU110548 - isvavai.cz</a>

Result on the web

<a href="https://www.degruyter.com/view/journals/chem/open-issue/article-10.1515-chem-2015-0080/article-10.1515-chem-2015-0080.xml" target="_blank" >https://www.degruyter.com/view/journals/chem/open-issue/article-10.1515-chem-2015-0080/article-10.1515-chem-2015-0080.xml</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Generation of High Frequency Pin-hole Discharge in Water Solutions

Original language description

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 mu S 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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/DF11P01OVV004" target="_blank" >DF11P01OVV004: Plasma chemical processes and technologies for conservation of archaeological metallic objects</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Open Chemistry

ISSN

2391-5420

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

1

Country of publishing house

PL - POLAND

Number of pages

9

Pages from-to

620-628

UT code for WoS article

000355403100075

EID of the result in the Scopus database

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