Radiolysis of Methanol Adsorbed on Zeolite

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Abstract
Radiolysis of methanol adsorbed on synthesized zeolite was investigated by means of product analysis. Molecular hydrogen, formaldehyde, and ethylene glycol are produced as major products. The G-value for the formation of H2 increases with increasing amount of methanol adsorbed on zeolite and approaches ca. 2.1 at about 10−2 mol of methanol per g of zeolite, where the coverage of methanol is approximately unity and G-values of ca. 1.0 are observed for formaldehyde and ethylene glycol. Addition of an electron scavenger causes decrease in G(H2). However, the hydrogen formation is not completely suppressed by N2O, SF6, or CCl4. Kinetics in solution is useful for the interpretation of results and allows the estimation of the G-value for the generation of electron in zeolite and of its relative reactivity toward methanol and some electron scavengers.

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