Electron paramagnetic resonance studies of the formation of alkali-metal particles and ionic clusters in alkali-metal-loaded X zeolites
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 87 (17) , 2843-2847
- https://doi.org/10.1039/ft9918702843
Abstract
Alkali metals (Li, Na, K, Rb, Cs) are loaded into the corresponding alkali-metal cation-exchanged X zeolites by alkali-metal vapour exposure and by decomposition of the corresponding alkali-metal azide mixed with the zeolite. Electron paramagnetic resonance shows that alkali-metal ionic clusters are formed, with K2+ 3 ionic clusters being reported for the first time in the potassium cation-exchanged X zeolites. Analysis shows that the number of nuclei in the alkali-metal ionic cluster is determined by the distribution of cations in the β-cage of the zeolite structure. Alkali-metal particles are also formed by both methods and are characterized by electron paramagnetic resonance.Keywords
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