Publication detail

Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge in NaCl Water Solutions

VYHNÁNKOVÁ, E. KRČMA, F. KOZÁKOVÁ, Z. HRDLIČKA, A.

Original Title

Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge in NaCl Water Solutions

English Title

Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge in NaCl Water Solutions

Type

abstract

Language

en

Original Abstract

In this work, several materials were studied as electrodes in a pin-hole configuration of a DC plasma discharge to estimate their effect on the efficiency of the discharge, given by hydrogen peroxide production. Detection was carried out using a specific titanium reagent. This was combined with ICP-OES analysis of the final solutions to determine the difference in amount of electrode material released during the discharge operation in contrast to electrolysis experiment carried out under the same conditions. It was found that from seven studied electrode materials, graphite gives the best results while aluminium and titan-zinc still work well with lower purchase price. The most unsuitable materials were copper and brass – in these cases, no hydrogen peroxide was detected in cathode part of the reactor. Results obtained by ICP analysis indicate that even in case of brass the absence of the hydrogen peroxide is given by the presence of copper in the material. It probably affects directly the phase of discharge creation and propagation rather than decomposition reactions.

English abstract

In this work, several materials were studied as electrodes in a pin-hole configuration of a DC plasma discharge to estimate their effect on the efficiency of the discharge, given by hydrogen peroxide production. Detection was carried out using a specific titanium reagent. This was combined with ICP-OES analysis of the final solutions to determine the difference in amount of electrode material released during the discharge operation in contrast to electrolysis experiment carried out under the same conditions. It was found that from seven studied electrode materials, graphite gives the best results while aluminium and titan-zinc still work well with lower purchase price. The most unsuitable materials were copper and brass – in these cases, no hydrogen peroxide was detected in cathode part of the reactor. Results obtained by ICP analysis indicate that even in case of brass the absence of the hydrogen peroxide is given by the presence of copper in the material. It probably affects directly the phase of discharge creation and propagation rather than decomposition reactions.

Keywords

Hydrogen peroxide; underwaterdischarge; titanium reagent; electrode material; ICP-OES analysis

Released

25.08.2013

Location

Budapest

ISBN

978-615-5270-04-8

Book

5th Central European Symposium on Plasma Chemistry – Book of Abstracts

Pages from

118

Pages to

118

Pages count

1

BibTex


@misc{BUT101816,
  author="Edita {Klímová} and František {Krčma} and Zdenka {Kozáková} and Aleš {Hrdlička}",
  title="Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge in NaCl Water Solutions",
  annote="In this work, several materials were studied as electrodes in a pin-hole configuration of a DC plasma discharge to estimate their effect on the efficiency of the discharge, given by hydrogen peroxide production. Detection was carried out using a specific titanium reagent. This was combined with ICP-OES analysis of the final solutions to determine the difference in amount of electrode material released during the discharge operation in contrast to electrolysis experiment carried out under the same conditions. It was found that from seven studied electrode materials, graphite gives the best results while aluminium and titan-zinc still work well with lower purchase price. The most unsuitable materials were copper and brass – in these cases, no hydrogen peroxide was detected in cathode part of the reactor. Results obtained by ICP analysis indicate that even in case of brass the absence of the hydrogen peroxide is given by the presence of copper in the material. It probably affects directly the phase of discharge creation and propagation rather than decomposition reactions.",
  booktitle="5th Central European Symposium on Plasma Chemistry – Book of Abstracts",
  chapter="101816",
  howpublished="print",
  year="2013",
  month="august",
  pages="118--118",
  type="abstract"
}