Reduced breakdown voltage for in-liquid plasma discharges using moveable electrodes
Description
Minimizing the breakdown voltage and discharge current required to initiate direct in-liquid discharges, thus lowering power-source requirements and avoiding electrode ablation, is crucial for industrial applications of in-liquid plasmas. Here we demonstrate such considerable reductions by employing movable electrodes, without changing the electrode configuration or increasing the system complexity. The new mechanism is based on electrostatic electrode attraction resulting in a reduction in the discharge spacing by up to 6 times and facilitating a plasma initiation at lower breakdown voltages. The accumulated charges consumed by the discharge revert the electrodes to the initial positions, forming a gliding arc between the enlarged gaps and thus inhibiting current increases and electrode ablation.
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ID Code: | 229373 | ||||
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Item Type: | Contribution to Journal (Journal Article) | ||||
Refereed: | Yes | ||||
ORCID iD: |
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Additional Information: | Acknowledgments: R. Z. appreciates the support of QUT Faculty Centre Strategic Funding provided by Faculty of Science and QUT Centre for a Waste-Free World. K. O. and J. H. thank QUT Centre for Materials Science for partial support. | ||||
Measurements or Duration: | 6 pages | ||||
Keywords: | breakdown voltage, discharge gap, in-liquid plasma discharges, moveable electrodes | ||||
DOI: | 10.1088/1361-6463/ac3d5d | ||||
ISSN: | 0022-3727 | ||||
Pure ID: | 107936167 | ||||
Divisions: | Current > Research Centres > Centre for Materials Science Current > Research Centres > Centre for a Waste Free World Current > Research Centres > Centre for Clean Energy Technologies & Practices Current > QUT Faculties and Divisions > Faculty of Science Current > Schools > School of Biology & Environmental Science Current > Schools > School of Chemistry & Physics |
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Copyright Owner: | 2021 IOP Publishing Ltd. | ||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||
Deposited On: | 06 Apr 2022 02:02 | ||||
Last Modified: | 29 Feb 2024 12:08 |
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