A129Xe NMR study of highly cadmium-exchanged zeolite Y

Applied Magnetic Resonance - Tập 8 - Trang 415-425 - 1995
T. Sprang1, B. Boddenberg1
1Lehrstuhl für Physikalische Chemie II, Universität Dortmund, Dortmund, Germany

Tóm tắt

The adsorption isotherms of carbon monoxide and xenon as well as the129Xe NMR chemical shifts of xenon in highly (68 and 87%) cadmium-exchanged zeolite NaY were measured. The complete set of experimental data can quantitatively be reproduced with a model that considers localized adsorption of both adsorbate molecules on cadmium and sodium cation sites in the supercages. The concentrations of the supercage cadmium cations as well as their characteristics like adsorption constants for Xe and CO and129Xe NMR chemical shifts were determined.

Tài liệu tham khảo

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