OH Production Enhancement in Bubbling Pulsed Discharges

Lungu, C.P.; Poroşnicu, C.; Jepu, I.; Chiru, P.; Zaroschi, V.; Lungu, A. M.; Saito, Nagahiro; Bratescu, Maria Antoaneta; Takai, Osamu; Velea, Theodor; Predicã, Vasile

doi:10.1063/1.3508527

Cited by 4 publications

(6 citation statements)

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“…The voltage pulse width was set to 2 µs and the repetition frequency was 14 kHz. The details of the pulsed power construction are described elsewhere, an improved version being developed . The current and the voltage waveforms were measured using a current probe (Tektronix P‐6021) and a voltage probe (Tektronix P‐6015) respectively, connected to an oscilloscope (Tektronix TDS 310).…”

Section: Methodsmentioning

confidence: 99%

Pulsed Electrical Discharges in Silicone Emulsion

Miron¹,

Bălan²,

Pricop³

et al. 2014

Plasma Process. Polym.

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Pulsed electrical discharges were initiated between two tungsten electrodes immersed in silicone emulsion. Optical emission spectra have shown the formation of carbon and oxygen molecules and radicals. A broad emission continuum dominated the spectrum with the increase of the discharge time due to a transition to arc plasma. Two well-distinguished and stable phases of different density were formed after the plasma treatment of the emulsion. Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), nuclear magnetic resonance spectroscopy ( 1 H NMR) and surface tension measurements have shown that a demulsification of the silicone emulsion was achieved using this method.

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Section: Methodsmentioning

confidence: 99%

Pulsed Electrical Discharges in Silicone Emulsion

Miron¹,

Bălan²,

Pricop³

et al. 2014

Plasma Process. Polym.

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“…The voltage pulse width was set to 50 µs and the repetition frequency was 7 kHz. The details of the pulsed power construction are described elsewhere . The current and the voltage waveforms were measured using a current probe (Tektronix P‐6021) and a voltage probe (Tektronix P‐6015) respectively, connected to an oscilloscope (Tektronix TDS 310).…”

Section: Methodsmentioning

confidence: 99%

“…Among other plasma processes, electrical discharge in liquids has become one of the most interesting techniques used for the functionalization of the surface polymers . Plasma formed in liquids allows the formation of reactive species which effectively may react with the polymer surface, leading to the attachment of chemical groups to it . The density of molecules in liquids is several orders of magnitude higher than that under the low‐pressure plasma, contributing to a faster and more efficient functionalization process.…”

Section: Introductionmentioning

confidence: 99%

Surface Modification of the Polyimide Films by Electrical Discharges in Water

Miron¹,

Sava²,

Jepu

et al. 2013

Plasma Processes & Polymers

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Pulsed electrical discharges in distilled water were used for the surface modifications of the aromatic polyimides. Optical emission spectroscopy has shown the formation of excited species in the plasma due to water dissociation and ionization. The reactive species have induced surface modifications of the polymer films which were investigated by FTIR, AFM, XPS, and static contact angle measurements. The surface hydrophobicity of the polyimide films increased with the plasma treatment time due to the segregation of the CF 3 groups at the polymer surface and the imidization of the polyimides during the plasma discharge.

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“…The interelectrode gap was set to 1 mm. The experimental configuration is presented elsewhere [18,19]. In all the performed experiments the applied pulsed voltage was provided by a unipolar power supply having a 30-ms rise timed5 kV maximum voltage pulse.…”

Section: Plasma Generation In Liquid Reaction Mixturementioning

confidence: 99%

Plasma generation in liquid as a new efficient synthesis approach of titania–zinc ferrite nano(photo)catalyst

Ignat¹,

Samoilă²,

Coromelci³

et al. 2017

Comptes Rendus. Chimie

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In the past years, an important problem that requires solutions at the global scale is the environmental pollution. This work describes a possible approach toward finding such solutions based on nanophotocatalysts with improved activity. Thus, the present study reports a new and efficient synthesis procedure for titaniaezinc ferrite nanocomposite with enhanced photodegradation activity. The method is based on the liquid phase plasma technique and follows a bottom-up scheme. The resulted materials have been compared with those synthesized by the ultrasound-assisted method. Using the plasmaassisted procedures in the fabrication of an efficient nano(photo)catalyst decreases considerably the reaction time. The liquid phase plasma generates nanoparticles with enhanced structural, textural, and morphological properties as demonstrated by X-ray diffraction, nitrogen sorption, transmission electron microscopy, and small-angle X-ray scattering.

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OH Production Enhancement in Bubbling Pulsed Discharges

Cited by 4 publications

References 0 publications

Pulsed Electrical Discharges in Silicone Emulsion

Pulsed Electrical Discharges in Silicone Emulsion

Surface Modification of the Polyimide Films by Electrical Discharges in Water

Plasma generation in liquid as a new efficient synthesis approach of titania–zinc ferrite nano(photo)catalyst

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