ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Characterization of hydroxyl groups of Y zeolites by infrared spectra

Z. Tvarůžková and V. Bosáček

J. Heyrovskij Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, 121 38 Prague

Abstract:  The preparation of Y typ3 decationized zeolites was studied in various conditions. I t has been found that an increase in the activation temperature leads to a gradual loss of hydroxyl groups. Decationized zeolites, prepared in vacuo, are less stable than zeolites prepared in static atmospheric con­ ditions or in an atmosphere enriched in water vapour. The zeolite stability was evaluated on the basis of the thermal resistivity of the —OH groups formed and of the resistance of the lattice to amorphization during rehydra­tion.

Full paper in Portable Document Format: 293a325.pdf

Chemical Papers 29 (3) 325–330 (1975)