Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1649642 | Materials Letters | 2009 | 4 Pages |
Abstract
Desilication in alkaline medium is demonstrated as a general route to synthesize hierarchical metallosilicate zeolite crystals with preserved crystallinity. The lattice trivalent cation (not only Al3+ but also Ga3+, Fe3+, and B3+) regulates the alkaline-assisted hydrolysis of silicon towards controlled mesoporosity development. This finding widens the family of modified zeolite compositions that integrate in a single crystalline material micropores and mesopores and enables better accessibility in catalytic applications compared to the purely microporous counterparts.
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Physical Sciences and Engineering
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Authors
Johan C. Groen, Rosario Caicedo-Realpe, Sònia Abelló, Javier Pérez-Ramírez,