Plasmas in liquids and some of their applications in nanoscience

Graham, W. G.; Stalder, K. R.

doi:10.1088/0022-3727/44/17/174037

Cited by 131 publications

(79 citation statements)

References 74 publications

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“…Current interest in plasma discharge in water is mainly driven by its potential application in biological, environmental and nanoscience areas. 3 One of the major advantages of underwater plasma discharge is that it combines different effects, including radical species (OH, O, HO 2 , etc. ), molecular species (H 2 O 2 , O 3 , etc.…”

Section: Introductionmentioning

confidence: 99%

Temporally resolved imaging on quenching and re-ignition of nanosecond underwater discharge

2012

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This paper presents the temporally resolved images of plasma discharge in de-ionized water. The discharge was produced by high voltage pulses with 0.3 ns rise time and 10 ns duration. The temporal resolution of the imaging system was one nanosecond. A unique three-stage process, including a fast ignition at the leading edge of the pulse, quenching at the plateau of the pulse, and self re-ignition at the trailing edge of the pulse, was observed in a single pulse cycle. The maximum measured propagation velocity of the plasma discharge was about 1000 km/s. The possibility of direct ionization in water under high reduced electric field conditions was discussed.

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Section: Introductionmentioning

confidence: 99%

Temporally resolved imaging on quenching and re-ignition of nanosecond underwater discharge

2012

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“…The current tends to concentrate in the pointed projection like a tip owing to the highly inhomogeneous electric field. 23 The surface morphology strongly affects the products size. Smooth and uniform surface, such as Particle and Random type, produces a small particle.…”

Section: G Formation Mechanism Of Nanoparticlesmentioning

confidence: 99%

Surface morphology of a glow discharge electrode in a solution

Saito

Hosokai

Tsubota

et al. 2012

Journal of Applied Physics

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Phase-field modeling of three-phase electrode microstructures in solid oxide fuel cells Appl. Phys. Lett. 101, 033909 (2012) Dynamic modelling and simulation of a polymer electrolyte membrane fuel cell used in vehicle considering heat transfer effects J. Renewable Sustainable Energy 4, 043107 (2012) Colloidal electroconvection in a thin horizontal cell. III. Interfacial and transient patterns on electrodes J. Chem. Phys. 137, 014504 (2012) Use of magnetite as anode for electrolysis of water J. Appl. Phys. 111, 124911 (2012) Additional information on J. Appl. Phys. This paper describes the surface morphology of a glow discharge electrode in a solution. In the experiments detailed in the paper, the effects of electrolysis time, solution temperature, voltage, electrolyte concentration, and surface area on the size of nanoparticles formed and their amount of nanoparticles produced were examined to study the surface morphologies of the electrodes. The results demonstrated that the amount of nanoparticles produced increased proportionally with the electrolysis time and current. When the voltages were below 140 V, surfaces with nanoparticles attached, called "Particles" type surfaces, were formed on the electrode. These surfaces changed and displayed ripples, turning into "Ripple" type surfaces, and the nanoparticle sizes increased with an increase in the amount of nanoparticles produced. In contrast, at voltages over 160 V, the surfaces of the electrodes were either "Random" or "Hole" type and the particle sizes were constant at different amount of nanoparticles produced. V C 2012 American Institute of Physics.

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“…On the other hand, the pulsed solution plasma method can be a promising candidate for cost-saving due to the plasma characteristics of high energy density resulting from the concentration of energy during tens of msec. 10,11 Pulsed solution plasma technique has been already utilized as a general method for the synthesis of nanomaterials. For example, the nanomaterials of Ag, 12 Al 2 O 3 , 13 Cu, 14 Cu 2 O, 14 CuO, 14 and ZrO 2 (ref.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of carbon-incorporated titanium oxide nanocrystals by pulsed solution plasma: electrical, optical investigation and nanocrystals analysis

Lee

Noh

et al. 2015

RSC Adv.

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TiO x /carbon composite nanosheets were synthesized by a "pulsed solution plasma" technique in aTi-contained solution. The discharge characteristics of the plasma were investigated via the resistance of the plasma channel from current and voltage profiles as a function of capacitor energy. Furthermore, the Ti-based oxides were characterized in detail using high-resolution transmission electron microscopy and selected area electron diffraction. Finally, the formation mechanism of the product was discussed through optical emission spectroscopy. The analyses revealed that the products were composed of spherical nanoparticles of TiO, TiO 2 rutile phases and polycrystalline anatase TiO 2 /carbon composite nanosheets, which were formed by plasma or plasma-induced reactions between species in Ti-contained solution.

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Plasmas in liquids and some of their applications in nanoscience

Cited by 131 publications

References 74 publications

Temporally resolved imaging on quenching and re-ignition of nanosecond underwater discharge

Temporally resolved imaging on quenching and re-ignition of nanosecond underwater discharge

Surface morphology of a glow discharge electrode in a solution

Synthesis of carbon-incorporated titanium oxide nanocrystals by pulsed solution plasma: electrical, optical investigation and nanocrystals analysis

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