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Toward Functional Clathrasils: Size‐ and Composition‐Controlled Octadecasil Nanocrystals by Desilication
Author(s) -
PérezRamírez Javier,
Abelló Sònia,
Villaescusa Luis A.,
Bonilla Adriana
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200802393
Subject(s) - zeolite , chemical engineering , mesoporous material , materials science , nanocrystal , crystallinity , catalysis , microporous material , mordenite , aluminosilicate , nanotechnology , fluid catalytic cracking , molecular sieve , cracking , chemistry , organic chemistry , composite material , engineering
Clathrasils go functional : Nanosized octadecasil crystals with tunable size and variable Si/Al ratio have been synthesized by controlled desilication of the parent clathrasil in alkaline medium. Extremely small (10–25 nm) nanocrystals with high external surface area (200 m 2 g −1 ) and preserved crystallinity were attained (see picture). This result widens the scope of this class of materials, opening room for catalytic applications.