https://doi.org/10.1140/epjd/s10053-024-00843-5
Regular Article
A reactor for generating DC plasma inside a liquid
1
Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, Fujian Provincial Key Laboratory of Electromagnetic Wave Science and Detection Technology, Xiamen Key Laboratory of Multiphysics Electronic Information, Institute of Electromagnetics and Acoustics, Xiamen University, 361005, Xiamen, China
2
School of Electronic and Information Engineering/School of Integrated Circuits, Guangxi Normal University, 541004, Guilin, China
Received:
7
October
2023
Accepted:
6
April
2024
Published online:
4
May
2024
We present a plasma reactor able to generate DC discharge plasma inside an aqueous solution. The key point is that one wire electrode for the plasma generation is inside a capillary quartz tube, leaving a small gap between the electrode tip and the end of the capillary quartz tube. When the capillary quartz tube is immersed in an aqueous solution, a small gas gap is provided between the electrode tip and the solution. Discharge plasma can be generated at the gas gap, as applied DC voltage is beyond the gas breakdown voltage. As two examples among many possible applications, hydrogen peroxide and nitrate are synthesized from the plasma reactor with a flowing aqueous solutions of Na2SO4.
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjd/s10053-024-00843-5.
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