Physical properties and chemical efficiency of an underwater dc discharge generated in He, Ar, N2 and air bubbles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F11%3APU90426" target="_blank" >RIV/00216305:26310/11:PU90426 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Physical properties and chemical efficiency of an underwater dc discharge generated in He, Ar, N2 and air bubbles

Popis výsledku v původním jazyce

A dc excited discharge generated in bubbles (He, Ar, Air, N2) in liquid phase is investigated in this work. Voltage/current characteristics and emission spectra of the discharge are recorded in the current range 10-30 mA. Electron density in the discharge is measured from the Stark broadening of H-beta line and it is in the order of 2-6 x 1020 m-3 depending on the feed gas. Estimation of electron temperature is carried out based on the balance of charged particles. Gas temperature is estimated by the slope of the Boltzmann plot and by the simulation of OH band with different T 1 rot , T 2 rot and Tvib. Rotation temperature in the He discharge is 1200K at I = 10mA and linearly increases up to 1600K with growth of current. In the plasma of molecular gases the temperature is higher and almost constant at different currents. Chemical efficiency of the plasma is measured by the production of H2O2 and by the destruction of Direct Blue 106. The highest energy consumption of H2O2 generation is

Název v anglickém jazyce

Physical properties and chemical efficiency of an underwater dc discharge generated in He, Ar, N2 and air bubbles

Popis výsledku anglicky

A dc excited discharge generated in bubbles (He, Ar, Air, N2) in liquid phase is investigated in this work. Voltage/current characteristics and emission spectra of the discharge are recorded in the current range 10-30 mA. Electron density in the discharge is measured from the Stark broadening of H-beta line and it is in the order of 2-6 x 1020 m-3 depending on the feed gas. Estimation of electron temperature is carried out based on the balance of charged particles. Gas temperature is estimated by the slope of the Boltzmann plot and by the simulation of OH band with different T 1 rot , T 2 rot and Tvib. Rotation temperature in the He discharge is 1200K at I = 10mA and linearly increases up to 1600K with growth of current. In the plasma of molecular gases the temperature is higher and almost constant at different currents. Chemical efficiency of the plasma is measured by the production of H2O2 and by the destruction of Direct Blue 106. The highest energy consumption of H2O2 generation is

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

PLASMA SOURCES SCIENCE & TECHNOLOGY

ISSN

0963-0252

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

034008-10

Kód UT WoS článku

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EID výsledku v databázi Scopus

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