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The interaction of neutral gas particles of thermal energies (molecules and atoms) with the surface of a solid is accompanied by radiation in the visible and I.R. parts of the spectrum. In this case, the surface of a solid body acts as a catalyst for the recombination reactions of gas particles. In this connection, the possibility of exciting luminescence during the catalytic oxidation of carbon monoxide directly by the atomic form of oxygen pre-adsorbed on the surface of a solid is of interest. Kinetic and spectral methods were used to study the luminescence arising from the catalytic oxidation of carbon monoxide by the atomic form of oxygen preadsorbed on the surface of a solid – a sample of α-willemite Zn2SiO4:Mn2+. The main stages in the mechanisms of recombination between adsorbate particles are established. Electronic transitions in adsorption complexes and the activator ion have been identified. During the filling process, the sample temperature was maintained by a constant high-speed electronic control system of the heater current. This made it possible to avoid thermal side effects. The main stages in the mechanisms of recombination between adsorbate particles are established. Electronic transitions in adsorption complexes and the activator ion have been identified. It was found that luminescence excitation proceeds in two main stages, somewhat time-shifted. The two-stage mechanism for the catalytic oxidation of carbon monoxide on the surface of α-willemite with pre-adsorbed atomic oxygen allows a consistent description of the luminescence observed in this case. This type of luminescence has the prospect of using for studying the mechanisms of catalytic oxidation of carbon monoxide.

Gas plasma technologies are becoming increasingly important on an industrial scale. They contribute to the production and processing of materials using the heating of the initial products in the plasma jet or their transfer to the plasma state. Therefore, the main goal of the work is to study the efficiency of an experimental setup for studying the excitation of stimulation and quenching of phosphorus luminescence in atomic-molecular beams. To achieve this goal, we analyzed the dissociation of gases in a high-frequency inductive discharge in the main circuits of modernized generators. The article presents the design, construction, hardware of the installation for the study of excitation, quenching and stimulation of the crystal phosphors by various methods when exposed to their surface single or crossed beams of gas molecules and atoms of thermal energy. Fragments of the kinetics and photoluminescence spectrum of yttrium oxide doped with europium in the beam of oxygen atoms were established.