Reaction of peroxide radicals with methane on the titanium oxide surface: Effects of the composition of the initial mixture

The reaction of TiO₂-adsorbed methyl peroxide radicals with methane, accompanied by transfer of the products into the gas phase at ∼20°C, was studied by the kinetic methods and EPR spectroscopy. In a definite range of methane concentrations, the reaction was accompanied by an increase in the total concentration of free radicals; i.e., these active species became not only regenerated, but also multiplied. The increase in the number of peroxide radicals was explained by the chain consumption of methane initiated by the reaction being studied.