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Molecular‐Sieve Membrane with Hydrogen Permselectivity: ZIF‐22 in LTA Topology Prepared with 3‐Aminopropyltriethoxysilane as Covalent Linker
Author(s) -
Huang Aisheng,
Bux Helge,
Steinbach Frank,
Caro Jürgen
Publication year - 2010
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.201001919
Subject(s) - permeance , zeolitic imidazolate framework , molecular sieve , selectivity , covalent bond , linker , membrane , thermal stability , chemical engineering , materials science , hydrogen , chemistry , inorganic chemistry , organic chemistry , catalysis , metal organic framework , adsorption , biochemistry , operating system , computer science , engineering
High hydrogen selectivity and thermal stability are displayed by a membrane of zeolitic imidazolate ZIF‐22 grown on porous ceramic supports by using 3‐aminopropyltriethoxysilane (APTES) as covalent linker (see picture). At 323 K, H 2 /CO 2 selectivity of 7.2 and H 2 permeance of 1.6×10 −7 mol m −2 s −1 Pa −1 were achieved.