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Cover Picture: Tailored Mesoporosity Development in Zeolite Crystals by Partial Detemplation and Desilication (Adv. Funct. Mater. 1/2009)
Author(s) -
PérezRamírez Javier,
Abelló Sònia,
Bonilla Adriana,
Groen Johan C.
Publication year - 2009
Publication title -
advanced functional materials
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.200890107
Subject(s) - materials science , zeolite , chemical engineering , diffusion , cover (algebra) , nanotechnology , catalysis , organic chemistry , chemistry , physics , thermodynamics , mechanical engineering , engineering
On page 164 , Pérez‐Ramírez et al. demonstrate that partial detemplation followed by desilication in alkaline media is a powerful and elegant approach for the design of hierarchical zeolites with a tailored degree of mesoporosity. This achievement, illustrated for large beta crystals, is based on the distinct capability of NaOH to extract silicon in template‐containing or template‐free regions of the zeolite. The introduced mesoporosity enhances the effectiveness of the materials in catalysis due to shorter diffusion lengths.