Kinetic model of aluminum oxidation by water vapor in heterogeneous plasma: Gas-phase kinetics

Bityurin, V. A.; Klimov, A. I.; Korshunov, O. V.; Chinnov, V. F.

doi:10.1134/s0018151x14050034

Cited by 9 publications

(3 citation statements)

References 6 publications

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“…Intensive studies of a plasma chemical reactor started a few years ago [2][3][4]. Peculiar properties of gas-dynamics and heat fluxes in the presence of longitudinal electric discharge in the swirl flow were studied in [5,6].…”

Section: Introductionmentioning

confidence: 99%

Plasma vortex reactor for production of heat energy and hydrogen

et al. 2018

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Section: Introductionmentioning

confidence: 99%

Plasma vortex reactor for production of heat energy and hydrogen

et al. 2018

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“…n works [1,2] , the results of studying the kinetics of processes in a heterogeneous plasma based on mixed flows of a buffer gas -argon, an oxidizer (water molecules), and aluminum dust are presented. Plasma of various types of discharge (glow, pulsed and combined) in gas-vapor mixtures of argon, water, and aluminum dust was studied.…”

mentioning

confidence: 99%

“…Plasma of various types of discharge (glow, pulsed and combined) in gas-vapor mixtures of argon, water, and aluminum dust was studied. In the plasma under study, aluminum dioxide is formed at the high-voltage electrode in the form of a developed flaky surface, and thermal energy is released [1] . The cost of producing a hydrogen molecule in such a reactor does not exceed 1.5 eV / molecule, which is much more economical than the hydrolysis method for produc-ing hydrogen.…”

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Study of the Formation Conditions of Aluminum Oxide Nanoparticles in an Overstressed Nanosecond Discharge Between Aluminum Electrodes in a Mixture of Nitrogen and Oxygen

Шуаибов

Minya

Малинина

et al. 2020

j. of met. mater. res.

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The results of the study of oscillograms of voltage, current, pulsed electric power and energy input into the plasma of an overstressed nanosecond discharge between aluminum electrodes in argon and mixtures of nitrogen with oxygen (100-1) at pressures in the range of 13.3-103.3 kPa are presented, the emission plasma spectra are studied. It is shown that in mixtures of nitrogen with oxygen at atmospheric pressure, nanoparticles of aluminum oxide (Al2O3) are formed, the luminescence of which manifests itself in the spectral range of 200-600 nm and which is associated with the formation of F-, F + - centers and more complex aggregate formations based on oxygen vacancies. Calculations of the electron-kinetic coefficients of plasma, transport characteristics, such as mean electron energies in the range 5.116-13.41 eV, are given. The electron concentration was 1.6 ∙ 1020 m-3 - 1.1 ∙ 1020 m-3 at a current density of 5.1 ∙ 106 A / m2 and l. 02 ∙ 107 A / m2 on the surface of the electrode of the radiation source (0.196 · 10-4 m2). Also drift velocities, temperatures and concentrations of electrons, specific losses of the discharge power for elastic and inelastic processes of collisions of electrons per unit of the total concentration of the mixture from the reduced electric field strength (E / N) for a mixture of aluminum, nitrogen, oxygen, rate constants of collisions of electrons with aluminum atoms on the E / N parameter in plasma on a mixture of aluminum vapor, oxygen and nitrogen = 30: 1000: 100000 Pa at a total mixture pressure of P = 101030 Pa are given.

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