Microplasma generation in a sealed microfluidic glass chip using a water electrode

Jo, Kyoung-Woo; Kim, Man-Geun; Shin, Sang-Mo; Lee, Jong‐Hyun

doi:10.1063/1.2832371

Cited by 30 publications

(16 citation statements)

References 8 publications

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“…The development of microplasma sources characterized by non-thermal operation at or near atmospheric pressure has now made it possible to stably interface plasmas with more common liquids, including water. This has spurred a great deal of interest for applications in water treatment [148,149], medicine [150,151] and chemical analysis [152,66]. Moreover, relevant to our discussion, the formation of microplasmas with liquids opens new chemical pathways to synthesize or modify nanomaterials directly in solution [154][155][156][157][158][159].…”

Section: Plasma-liquid Interactionsmentioning

confidence: 97%

Microplasmas for nanomaterials synthesis

Mariotti¹,

Sankaran²

2010

J. Phys. D: Appl. Phys.

508

399

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Microplasmas have attracted a tremendous amount of interest from the plasma community because of their small physical size, stable operation at atmospheric pressure, non-thermal characteristics, high electron densities and non-Maxwellian electron energy distributions. These properties make microplasmas suitable for a wide range of materials applications, including the synthesis of nanomaterials. Research has shown that vapour-phase precursors can be injected into a microplasma to homogeneously nucleate nanoparticles in the gas phase. Alternatively, microplasmas have been used to evaporate solid electrodes and form metal or metal-oxide nanostructures of various composition and morphology. Microplasmas have also been coupled with liquids to directly reduce aqueous metal salts and produce colloidal dispersions of nanoparticles. This topical review discusses the unique features of microplasmas that make them advantageous for nanomaterials synthesis, gives an overview of the diverse approaches previously reported in the literature and looks ahead to the potential for scale-up of current microplasma-based processes.

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Section: Plasma-liquid Interactionsmentioning

confidence: 97%

Microplasmas for nanomaterials synthesis

Mariotti¹,

Sankaran²

2010

J. Phys. D: Appl. Phys.

508

399

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“…In the table, σ (ε) presents the cross section of the reaction, and ε presents electron energy. The units of reaction rate constant are cm 3 •s −1 . The parameter T presents the plasma gas temperature.…”

Section: Optical Emission Spectramentioning

confidence: 99%

Spectroscopic study of bipolar nanosecond pulse gas-liquid discharge in atmospheric argon

Wang¹,

Yang²,

Liu³

et al. 2018

Plasma Sci. Technol.

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Atmospheric gas-liquid discharge with argon as a working gas is presented by employed nanosecond pulse power. The discharge is presented in a glow-like mode. The discharge powers are determined to be less than 1 W, and remains almost constant when the discharge duration time increases. Bountiful active species are determined by capturing optical emission spectra, and their main generation processes are also discussed. The plasma gas temperature is calculated as 350 K by comparing the experimental spectra and the simulated ones of N C B , 2. 2 g 3 g 3 P  P Dn =-() The time resolved vibrational and rotational temperature is researched to present the stability of discharge when pulse voltage and discharge duration vary. The electron density is determined to be 10 16 cm −3 according to the Stark broadening effect of the H α line.

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“…Atmospheric pressure (AP) gas–liquid discharges with dielectric‐free electrode configurations, in which the plasma can contact the liquid surface directly, have been widely used in industrial areas of the environmental and medical applications . Under special conditions, non‐thermal plasma (NTP) can be generated using gas–liquid discharges, in which the reactive oxygen species (ROS), i.e.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Pressure Gas–Liquid Diffuse Nanosecond Pulse Discharge Used for Sterilization in Sewage

Yang

Jia

Wang

et al. 2014

Plasma Processes & Polymers

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In this paper, we present a large area nanosecond pulse gas‐liquid diffuse discharge plasma with small flow rate of helium as working gas. The discharge images, the waveforms of pulse voltage & current, the emission spectra, and the gas temperature are measured or calculated. As a energy‐efficient sterilization for sewage, the efficiency of sewage sterilization in both static liquid and flowed liquid are investigated. It is found that an optimal value of helium gas flow rate in the production of reactive oxygen species (OH, O) can be obtained when the He flow rate is 5 ml min−1, under this condition, high inactivation efficiencies of bacteria and fungus can be presented.

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Microplasma generation in a sealed microfluidic glass chip using a water electrode

Cited by 30 publications

References 8 publications

Microplasmas for nanomaterials synthesis

Microplasmas for nanomaterials synthesis

Spectroscopic study of bipolar nanosecond pulse gas-liquid discharge in atmospheric argon

Atmospheric Pressure Gas–Liquid Diffuse Nanosecond Pulse Discharge Used for Sterilization in Sewage

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