Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/40047
Title: Infrared spectral characterization of acidity of zirconium pillared clays
Authors: Vijaya, C
Rengaraj, K
Sivasankar, B
Issue Date: May-1998
Publisher: NISCAIR-CSIR, India
Abstract: Montmorillonite and vermiculite intercalated with polyoxo cations of zirconium have been prepared. The nature of acidic sites has been studied by infrared (lR) spectroscopy using pyridine and ammonia as the probe molecules. The IR spectral data show three types of acid sites to be available on the pillared clay catalysts. The existence of Bronsted acid, lewis acid and weak acidic sites has been demonstrated. The effect of heat treatment on the intensities of IR spectral bands has been investigated to confirm the presence of weak acid sites to which pyridine is hydrogen bonded.
Page(s): 441-443
URI: http://nopr.niscair.res.in/handle/123456789/40047
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.37A(05) [May 1998]

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