Abstract

The atomic-hydrogen-initiated ejections of materials from the surface of solids (ZnS, Ni) preliminary treated with dissociated carbon dioxide are revealed. The glow of a crystalline phosphor and the dynamic effect of the reaction are observed in the dissociated carbon dioxide medium. It is found that the observed variations in the dynamic effect of the reaction are unrelated to changes in the reaction rate. These effects are used to elucidate the mechanism of heterogeneous radical recombination on the surface of solids (Al2O3, ZnS, Ni) in dissociated carbon dioxide. It is revealed that, under the experimental conditions, the reaction rate is independent of the chemisorbed radical concentration, because the reaction involves radicals entrapped into the precursor state with a short lifetime at the surface.

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