Bulletin of the American Physical Society
76th Annual Gaseous Electronics Conference
Volume 68, Number 9
Monday–Friday, October 9–13, 2023; Michigan League, Ann Arbor, Michigan
Session EW4: Plasma Liquid Interaction
1:30 PM–3:30 PM,
Wednesday, October 11, 2023
Room: Michigan League, Vandenberg
Chair: Tanvir Farouk, University of South Carolina
Abstract: EW4.00002 : Interactions at the Interface between Atmospheric Pressure Pasmas and Liquids*
2:00 PM–2:30 PM
Presenter:
Peter Bruggeman
(University of Minnesota)
Author:
Peter Bruggeman
(University of Minnesota)
In this presentation, we will report time resolved measurements of the development of plasma instabilities in pulsed discharges with a liquid electrode and describe the underpinning mechanisms that can trigger or prevent the formation of such instabilities in the presence of a liquid electrode. We will discuss the impact of plasma-induced liquid evaporation on the discharge morphology and reactive species formation, and show that with a detailed knowledge of the gas phase OH and electron densities near the liquid interface, we can quantitatively explain plasma-induced redox reactions with probe molecules in the solution phase for specific cases. Several examples of reactions enabled by plasma-induced solution electrochemistry with significant promise for chemical synthesis will be shown and a few case studies of unexplored liquid phase reactions will be presented.
*This work was partially supported by the US Department of Energy under Award Number DE-SC-0016053 and DE-SC-0020232, and the Army Research Office under Grant Number W911NF-20-1-0105.
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