Abstract
The influence of different factors on the plasma chemical reactions is widely studied today. However, insufficient consideration is given to the research of paramagnetic phenomena which takes place in plasma systems. The results of modeling the process of redistribution carbon isotopes between different phases while oxidizing it in high-frequency low-temperature plasma in an external magnetic field are shown in the article. The equilibrium concentrations of components involved in the oxidation process in a plasma system are defined. A principle possibility of isotope-selective plasma chemical reactions in a magnetic field was experimentally determined. The increase of concentration of 13C in the gas phase up to 1.3 times relative to natural abundance was obtained. It was found that the content of the carbon heavy isotope in the gas phase depends on the magnetic field action area. The best results were achieved with the combination of magnetic field impact area and the priority area of the appearance of plasma chemical reactions products.
Highlights
The features of plasma processes are well-known at this time [1,2,3]
This paper covers the study of an external magnetic field influence on isotope redistribution between gaseous and condensed phases of atomic carbon partial oxidation in the low-temperature plasma
The research objective is to study of the paramagnetic phenomena role in the isotope redistribution between the gaseous and condensed phases in the atomic carbon oxidation occurring in low-temperature gas-discharge plasma in an external magnetic field
Summary
The features of plasma processes are well-known at this time [1,2,3]. insufficient attention to the paramagnetic effects in low-temperature plasma is given. The various ways to control the chemical reactions rate at room temperature are used: temperature control, reactants or products concentration change, catalysts or inhibitors usage [4] The effect of these factors comes to change the number of particles in a reactive state. This paper covers the study of an external magnetic field influence on isotope redistribution between gaseous and condensed phases of atomic carbon partial oxidation in the low-temperature plasma. In the low-temperature plasma particle collision time does not exceed 10−12 seconds During this time, the spatial orientation of the valence electrons spins in a magnetic field does not change. The research objective is to study of the paramagnetic phenomena role in the isotope redistribution between the gaseous and condensed phases in the atomic carbon oxidation occurring in low-temperature gas-discharge plasma in an external magnetic field. The main tasks are the construction of the model describing the physical and chemical processes in low-temperature plasma in an external magnetic field and experimental research of the magnetic field influence on the isotope effects in plasma chemical reactions
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