Time-delayed transition of normal-to-abnormal glow in pin-to-water discharge

Yoon, Seok–Jin; Byeon, Yong‐Seong; Hong, Eun Jeong; Kim, S. B.; Yoo, Suk Jae; Ryu, Seon Young

doi:10.1063/1.4959809

Cited by 7 publications

(12 citation statements)

References 24 publications

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“…The feedback process will cause the plasma to transit from glow to arc via abnormal. In our previous work, we reported the time-delayed plasma transition from glow to arc 10 . Based on the results, therefore, we suggest the concept of the mutual interactions between the plasma and water as shown in Fig.…”

Section: Resultsmentioning

confidence: 97%

“…It implies that the trends of surface tensions with plasma treatment time could be different depending on discharge gas species. In the pin-to-liquid system, the major dissolving electrolyte from the air plasma is HNO 3 10 , which decreases the surface tension. If the discharge system dissolves ions such as LiCl, KOH, NaCl, NaBr, CsCl, NH 4 Cl NH 4 NO 3 , or NaI into the PTW, surface tension will increase 16 .…”

Section: Resultsmentioning

confidence: 99%

“…treated PTW. The detailed dimension and plasma generating power are described in our previous work 10 .…”

Section: Methodsmentioning

confidence: 99%

“…Plasma dissolves electrolyte ions into the plasma treated water (PTW). The dissolved electrolyte ions increase the electrical conductivity of PTW 10 . The increase of PTW electrical conductivity means a low-current resistor; thus, the plasma can transit from glow to arc via abnormal.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous work 8 – 11 , we found the liquid target is also an important factor to determine the characteristics of plasmas. We have focused on the transition of plasma and liquid properties during the long-term over tens of minutes 10 . The role of PTW in electronic components is as a resistor, so the solid electrode-to-liquid electrode discharge system is called as a “resistive barrier discharge” 12 .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Yoon¹,

Jeon²,

Yi³

et al. 2018

Sci Rep

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This study investigated the mutual interaction between the plasma and plasma treated water (PTW). Many works have shown that the plasma treatment decreases the pH of PTW due to nitric oxide electrolyte ion but the interactions between PTW and the plasma are still largely unknown. We investigated the effect of PTW on a plasma as well as the effect of a plasma on PTW using a pin-to-liquid discharge system. It is found that PTW affects not only the chemical properties but also the physical properties of the plasma such as breakdown voltage and concentration of plasma column. The decrease of the liquid surface tension of PTW due to nitric oxide electrolyte ion from the plasma results in the increase of plasma current onto the surface of PTW and vice versa. The feedback process will be continued until the transition from normal discharge to abnormal discharge. These results can be basic data for the development of plasma sources to treat liquids.

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Section: Resultsmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

“…treated PTW. The detailed dimension and plasma generating power are described in our previous work 10 .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Yoon¹,

Jeon²,

Yi³

et al. 2018

Sci Rep

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Bullet-to-streamer transition on the liquid surface of a plasma jet in atmospheric pressure

Yoon¹,

Kim

et al. 2017

Physics of Plasmas

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This study investigated the transition of the plasma shape from a ring-shaped bullet to a pin-like streamer adjacent to the electrolyte surface in a kHz-driven helium atmospheric pressure plasma jet. The transition was observed by synchronized fast images, plasma propagation speed, time-resolved emission profile of Hβ, and spatially and temporally resolved helium metastable density. The transition height increased when electrolyte evaporation was enhanced. The plasma continued to discharge on the electrolyte surface even in the absence of metastable species, i.e., the discharge mechanism changed from Penning ionization between helium metastable and ambient nitrogen to electron collision on evaporated water.

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Effects of gas temperature in the plasma layer on RONS generation in array-type dielectric barrier discharge at atmospheric pressure

Yoon¹,

Yi²,

Eom³

et al. 2017

Physics of Plasmas

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In this work, we studied the control of plasma-produced species under a fixed gas composition (i.e., ambient air) in a 10 kHz-driven array-type dielectric barrier atmospheric-pressure plasma discharge. Instead of the gas composition, only the gas velocity was controlled. Thus, the plasma-maintenance cost was considerably lower than methods such as external N2 or O2 injection. The plasma-produced species were monitored using Fourier transformed infrared spectroscopy. The discharge properties were measured using a voltage probe, current probe, infrared camera, and optical emission spectroscopy. The results showed that the major plasma products largely depend on the gas temperature in the plasma discharge layer. The gas temperature in the plasma discharge layer was significantly different to the temperature of the ceramic adjacent to the plasma discharge layer, even in the small discharge power density of ∼15 W/cm2 or ∼100 W/cm3. Because the vibrational excitation of N2 was suppressed by the higher gas flow, the major plasma-produced species shifted from NOx in low flow to O3 in high flow.

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Time-delayed transition of normal-to-abnormal glow in pin-to-water discharge

Cited by 7 publications

References 24 publications

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Mutual Interaction between Plasma Characteristics and Liquid Properties in AC-driven Pin-to-Liquid Discharge

Bullet-to-streamer transition on the liquid surface of a plasma jet in atmospheric pressure

Effects of gas temperature in the plasma layer on RONS generation in array-type dielectric barrier discharge at atmospheric pressure

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