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Microwave synthesis and occlusion reactions of zeolites

Taylor, Ann Elizabeth (2007)
Ph.D. thesis, University of Birmingham.

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Abstract

The work presented in this volume covers two distinct fields of zeolite chemistry. The first section of this thesis is dedicated to the synthesis of zeolites A (LTA), X (FAU), Y, (FAU) and rho (RHO) in a microwave oven. Results have demonstrated that when zeolitic gels are heated in a microwave oven they yield zeolite crystals far quicker than when heated in a conventional oven. This is in part a consequence of the rapid heating of the zeolitic gel caused by the microwave radiation, however, this alone is not responsible for such dramatic reductions in synthesis times. An examination of the effect of reagents on the crystallisation of zeolites in a microwave oven is undertaken. The other portion of this thesis focuses on the ion exchange and occlusion reactions undergone by zeolites A (LTA), ZK-4 (LTA) and rho (RHO) in the presence of monovalent metal nitrates. In some cases non-framework peaks are seen in the powder X-ray diffraction patterns of occluded samples. These peaks are attributed to the formation of a superlattice within the zeolite cavities. Particular attention is given to the structural identification of the silver nitrate superlattice formed within zeolite A.

Type of Work:Ph.D. thesis.
Supervisor(s):Anderson, P.A. (Paul Alexander) (1965-)
School/Faculty:Schools (1998 to 2008) > School of Chemical Sciences
Department:Chemistry
Keywords:Zeolite, microwave synthesis, occlusion
Subjects:QD Chemistry
Institution:University of Birmingham
Library Catalogue:Check for printed version of this thesis
ID Code:79
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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