2023
DOI: 10.1088/1361-6595/acc54a
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The transport dynamics of tens of micrometer-sized water droplets in RF atmospheric pressure glow discharges

Abstract: Charging of particles having diameters of tens of microns has been extensively studied at atmospheric pressure in the context of, for example, electrostatic precipitators where the focus was on unipolar charging. The ambipolar charging of particles in atmospheric pressure plasmas, and of droplets in particular, has received less attention. The plasma activation of droplets is of interest for water purification, fertilizer production and materials synthesis, all of which depend on the transport of the droplets … Show more

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Cited by 5 publications
(1 citation statement)
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“…Unlike formate, PFOA will diffuse from the bulk of the droplet to the interface to accumulate at the interface before reaching the plasma. The droplet takes between 10 and 21 ms to bridge the distance between the dispenser and plasma, depending on its velocity [ 67 ] . This timescale is larger than the diffusion time scale (Table 3) even for the smallest gas flow rate, allowing a significant surface density of PFOA to be formed at the plasma–droplet interface before entering the plasma.…”
Section: Resultsmentioning
confidence: 99%
“…Unlike formate, PFOA will diffuse from the bulk of the droplet to the interface to accumulate at the interface before reaching the plasma. The droplet takes between 10 and 21 ms to bridge the distance between the dispenser and plasma, depending on its velocity [ 67 ] . This timescale is larger than the diffusion time scale (Table 3) even for the smallest gas flow rate, allowing a significant surface density of PFOA to be formed at the plasma–droplet interface before entering the plasma.…”
Section: Resultsmentioning
confidence: 99%