Chemistry: A European Journal 2011-12-16

Synthesis of dicationic ionic liquids and their application in the preparation of hierarchical zeolite Beta.

Rajkumar Kore, Biswarup Satpati, Rajendra Srivastava

Index: Chemistry 17(51) , 14360-5, (2011)

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Abstract

Piperidine- and imidazole-based dicatoinic ionic liquids have been developed for the synthesis of zeolite Beta. Hierarchical Beta has a larger surface area and pore volume than conventional Beta. Beta derived from a dicationic ionic liquid exhibited remarkably higher catalytic activity than the conventional Beta. Experimental evidence and DFT calculations suggest that only a suitable conformation of such dicationic ionic liquids is able to form zeolite Beta (see scheme).Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.