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Unprecedented Expansion of the Pore Size and Volume of Periodic Mesoporous Silica
Author(s) -
Sayari Abdelhamid
Publication year - 2000
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 - 10.1002/1521-3773(20000818)39:16<2920::aid-anie2920>3.0.co;2-3
Subject(s) - hydrothermal circulation , mesoporous material , volume (thermodynamics) , molecular sieve , materials science , emulsion , mesoporous silica , chemical engineering , sieve (category theory) , mcm 41 , mineralogy , chemistry , organic chemistry , thermodynamics , mathematics , adsorption , catalysis , physics , engineering , combinatorics
Adjusting the pore size and volume of molecular sieve MCM‐41 over a very wide range is possible through simple hydrothermal treatment of “off the shelf”, as‐synthesized materials in a decyldimethylamine (DMDA)–water emulsion (see schematic representation). The amine/silica ratio as well as the time and temperature of the treatment are the main parameters that control the pore size expansion process.