Estimation of electron parameters in the dielectric barrier discharge with a liquid electrode at atmospheric pressure

Bobkova, E. S.; Рыбкин, В. В.

doi:10.1134/s0018151x13060059

Cited by 14 publications

(10 citation statements)

References 19 publications

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“…Such influence of water content on electron kinetic parameters is not specific feature of N 2 plasma. The same situation takes place for oxygen plasma as well [45]. The vibrational quantum of N 2 (X), 2359 cm -1 , is less than for H 2 O (010) mode (1595 cm -1 ).…”

Section: Resultsmentioning

confidence: 60%

Physical Parameters and Chemical Composition of a Nitrogen DC Discharge with Water Cathode

Smirnov

Shutov

Bobkova

et al. 2015

Plasma Chem Plasma Process

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This paper reports the results of the experimental study and chemical composition modeling for a DC nitrogen discharge burning above water cathode in the pressure range of 0.1-1 bar and at discharge current of 40 mA. The gas temperature, vibrational temperatures, reduced electric field strength, cathode voltage drop, and emission intensities of some nitrogen bands were obtained from experiment. The modeling chemical composition of plasma was carried out on the basis of these data. At modeling, the combined solution of Boltzmann equation for electrons, equations of vibrational kinetics for ground states of N 2 , O 2 , H 2 O and NO molecules, equations of chemical kinetics and plasma conductivity equation were used. The calculations agree with the measured bands intensities for the second positive system of N 2 and vibrational temperatures of N 2 ðC 3 P u Þ. In the frame of the model proposed, the data of other studies were explained. The second kind collision of electrons with N 2 vibration excited states was shown to affect strongly the electron gas parameters. The electron average energy and electron density are given. The difference between the properties of the discharges in N 2 and air at the same conditions are discussed as well.

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Section: Resultsmentioning

confidence: 60%

Physical Parameters and Chemical Composition of a Nitrogen DC Discharge with Water Cathode

Smirnov

Shutov

Bobkova

et al. 2015

Plasma Chem Plasma Process

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“…The changes in concentration are due to a decrease in the О 2 content and a change in the electrophysical parameters of the plasma. It was shown previously that for a given value of E/N, increasing the content of water molecules results in a decrease in the rate constants of processes involving electrons, and the decline is stronger the higher the threshold energy of the process [16]. With increasing E/N, the degree of influence on the constants becomes lower.…”

Section: Results Of Calculationsmentioning

confidence: 95%

“…It is shown in [16] that the studied discharge occurs in a so called glow or homogeneous form [17], while the EEDF is determined by the local value of E/N; that is, the stationary Boltzmann equation in the two term approximation can be used for calculations.…”

Section: Methods Of Calculations and Description Of The Modelmentioning

confidence: 99%

“…The range of root mean square (rms) voltages and currents was 3591-10283 and 0.14-0.57 mA, respectively. Active power put in the discharge was 0.4-4 W. The analysis of the equivalent circuit of the discharge, the determination of the voltage drops at the gas gap and the active component of the current, and the calcula tion on this basis of the time variation of parameter E/N for various applied voltages are given in [16].…”

Section: Methodsmentioning

confidence: 99%

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Chemical composition of plasma of dielectric barrier discharge at atmospheric pressure with a liquid electrode

et al. 2014

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The composition of active particles in a plasma was calculated for the conditions of dielectric bar rier discharge at atmospheric pressure in oxygen from the measured waveforms of current and voltage using joint solution of the Boltzmann equation and the equations of chemical kinetics. Kinetic equations included the reactions involving O 2 and H 2 O molecules (the main plasma gas), their dissociation products, and the excited states of molecules O 2 and atoms O. It is shown that the main neutral components of such plasma are molecules O 3 , O 2 (a 1 Δ g ), H 2 O 2 , and OH. The mechanisms of formation and destruction of these components are studied.

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“…The hydrogen peroxide formation efficiency is significantly smaller in the bubble mode than in the liquid mode. In the work [33], the kinetic parameters of electrons for the dielectric barrier discharge with a liquid electrode at atmospheric pressure have been estimated. Thus, we may suppose that the CNP will possess chemical activity with respect to its application in realization of the different oxidative-reductive processes.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Contact Non-equilibrium Plasma on Structural and Magnetic Properties of Mn Х Fe3 − X О4 Spinels

Frolovа

Derhachov

2017

Nanoscale Res Lett

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Nano-sized manganese ferrites Mn х Fe 3 − х О 4 (х = 0-1.3) were prepared using contact non-equilibrium plasma (CNP) in two different pH (11.5 and 12.5). The influence of synthesis conditions (e.g., cation ratio and initial pH) on phase composition, crystallite size, and magnetic properties were investigated employing X-ray diffraction (XRD), differential thermal analysis (DTA), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and magnetic measurement techniques. The formation of monodispersed faceted ferrite particles at х = 0-0.8 was shown. The FTIR spectra revealed reflection in region 1200-1700 cm −1 caused by the presence of water adsorbed on the surface of Fe 3 − x Mn x O 4 micro-granules or embedded into their crystal lattice. The most sensitivity of reflection spectra to the composition changes takes place within a 400-1200 cm ). The XRD results showed that the nanocrystalline Mn х Fe 3 − х О 4 (0 < x < 1.0) had cubic spinel crystal structure with average crystallite size 48-49 A. The decrease of crystalline size with the x increase was also observed.

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Estimation of electron parameters in the dielectric barrier discharge with a liquid electrode at atmospheric pressure

Cited by 14 publications

References 19 publications

Physical Parameters and Chemical Composition of a Nitrogen DC Discharge with Water Cathode

Physical Parameters and Chemical Composition of a Nitrogen DC Discharge with Water Cathode

Chemical composition of plasma of dielectric barrier discharge at atmospheric pressure with a liquid electrode

The Effect of Contact Non-equilibrium Plasma on Structural and Magnetic Properties of Mn Х Fe3 − X О4 Spinels

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