Investigation of the Condition of the Gold Electrodes Surface in a Plasma Reactor
Fundamentals of Technology Faculty, Lublin University of Technology, 20-618 Lublin, Poland
*
Author to whom correspondence should be addressed.
Materials 2019, 12(13), 2137; https://doi.org/10.3390/ma12132137
Received: 18 May 2019
/
Revised: 28 June 2019
/
Accepted: 2 July 2019
/
Published: 3 July 2019
During the long-term operation of a plasma reactor, decreases in plasma concentration were noticed despite the constant maintenance of all parameters. One of the factors was the decrease in the nitrogen content on the electrode surface; in order to eliminate it, the supply voltage was increased up to 11 kV. Another decisive factor in the plasma concentration decrease was the oxidation of the electrode surface. These effects were studied using two electrodes: a gold one and a copper one coated with a 10 μm thick layer of galvanized gold. In the experiment with the gold coated electrode, a large decrease in plasma concentration was observed. High-energy electrons knocked out the gold atoms from the electrode; as a result, the gold atoms evaporated and the raids layers formed. After the electrodes had been in operation for a month, metallographic analyzes were carried out, the results of which are described in this paper.
View Full-Text
Keywords:
gold, surface of electrodes; ozone; plasma; raids layer
▼
Show Figures
Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Gnapowski, S.; Kalinowska-Ozgowicz, E.; Śniadkowski, M.; Pietraszek, A. Investigation of the Condition of the Gold Electrodes Surface in a Plasma Reactor. Materials 2019, 12, 2137. https://doi.org/10.3390/ma12132137
AMA Style
Gnapowski S, Kalinowska-Ozgowicz E, Śniadkowski M, Pietraszek A. Investigation of the Condition of the Gold Electrodes Surface in a Plasma Reactor. Materials. 2019; 12(13):2137. https://doi.org/10.3390/ma12132137
Chicago/Turabian StyleGnapowski, Sebastian, Elżbieta Kalinowska-Ozgowicz, Mariusz Śniadkowski, and Aleksandra Pietraszek. 2019. "Investigation of the Condition of the Gold Electrodes Surface in a Plasma Reactor" Materials 12, no. 13: 2137. https://doi.org/10.3390/ma12132137
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
