Abstract
The X-ray irradiation of a series of Ca– and La–Y zeolites, pretreated at different temperatures results in the formation of oxides (CaO and La2O3) in the sodalite cage, and in a depopulation of the hexagonal prisms. The structures are similar for all (previously different) samples and cannot be distinguished statistically. The number of oxygens in the oxides largely exceeds the level of residual water and originates from the framework. The reversible mobility of the framework oxygens is postulated, considering the zeolite framework and cations merely as a “mixed oxide”.
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Schedule a callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
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