Publication detail

Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge

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

Original Title

Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge

English Title

Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge

Type

journal article in Web of Science

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 titanium-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 titanium-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; underwater discharge; titanium reagent; electrode material; ICP-OESanalysis

RIV year

2015

Released

05.01.2015

Pages from

218

Pages to

223

Pages count

6

BibTex


@article{BUT109477,
  author="Edita {Klímová} and Zdenka {Kozáková} and František {Krčma} and Aleš {Hrdlička}",
  title="Influence of Electrode Material on Hydrogen Peroxide Generation by DC Pin-Hole Discharge",
  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 titanium-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.",
  chapter="109477",
  doi="10.1515/chem-2015-0054",
  number="1",
  volume="13",
  year="2015",
  month="january",
  pages="218--223",
  type="journal article in Web of Science"
}