Emission Spectra Of Transient Spark With Electrospray
Tóth P, Janda M, and Smirnov S
25th Symposium on Applications of Plasma Processes (SAPP XXV) & the 14th EU-Japan Joint Symposium on Plasma Processing, Štrbské Pleso, Slovakia, January 31 - February 5, p. 246-250 (2025)
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Abstract: Transient spark (TS) discharge, generate lowtemperature plasma rich in ions and electrons, initiating
a chain of reactions that produce gaseous molecules like NO, NO₂, and HNO₂. When these gases
dissolve in water, they form reactive species, including NO₂⁻, NO₃⁻, H₂O₂, and ONOO⁻/ONOOH, which
have potential applications in environmental processes. The solvation of these gases is enhanced by
converting bulk water into electrospray (ES) microdroplets directly within the TS discharge zone.
Moreover, the simultaneous production of TS and ES increases the concentration of iron ions due to
electrode sputtering. This study investigates the precursor ions and atoms involved in reactive species
generation using emission spectroscopy.
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