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Intercalated Clay Catalysts
Thomas J. Pinnavaia
New Series, Vol. 220, No. 4595 (Apr. 22, 1983), pp. 365-371
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1690579
Page Count: 7
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Recent advances in the intercalation of metal complex cations in smectite clay minerals are leading to the development of new classes of selective heterogeneous catalysts. The selectivity of both metal-catalyzed and proton-catalyzed chemical conversions in clay intercalates can often be regulated by controlling surface chemical equilibria, interlamellar swelling, or reactant pair proximity in the interlayer regions. Also, the intercalation of polynuclear hydroxy metal cations and metal cluster cations in smectites affords new pillared clay catalysts with pore sizes that can be made larger than those of conventional zeolite catalysts.
Science © 1983 American Association for the Advancement of Science