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New Approaches to Pore Size Engineering of Mesoporous Silicates
Author(s) -
Sayari Abdelhamid,
Kruk Michal,
Jaroniec Mietek,
Moudrakovski Igor L.
Publication year - 1998
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199811)10:16<1376::aid-adma1376>3.0.co;2-b
Subject(s) - materials science , mesoporous material , nanotechnology , chemical engineering , organic chemistry , engineering , catalysis , chemistry
Pore size engineering of silicates has always been a critical issue in the field of mesoporous materials design. A new method for obtaining silicates with pore sizes up to 11 nm and narrow pore size distributions is described by the authors. Treating non‐calcined MCM‐41 silicate in aqueous emulsions of long‐chain alkylamines, they generated these materials with large pores and exceptionally high pore volumes. Direct synthesis in the presence of long‐chain alkylamines affords materials with up to 8 nm pores. These simple techniques are thought to be applicable to other molecular sieves.