Abstract

Uranyl silicates with different uranyl contents were synthesized. For comparison, the radiation catalytic activity of uranyl silicate with 10% uranium and starting silicate during the radiolytic decomposition of water was studied. The heterogeneous radiolysis of water was investigated in the adsorbed and liquid states in contact with uranyl silicate and silicate samples. The effect of the uranyl cations, the state of water, and reaction temperature on the yield of molecular hydrogen was revealed. The mechanisms of heterogeneous radiolysis of water involving the uranyl silicate and silicate samples under study were suggested.

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