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The Effect of Pressure on ZIF‐8: Increasing Pore Size with Pressure and the Formation of a High‐Pressure Phase at 1.47 GPa
Author(s) -
Moggach Stephen A.,
Bennett Thomas D.,
Cheetham Anthony K.
Publication year - 2009
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.200902643
Subject(s) - solvent , volume (thermodynamics) , phase transition , porosity , phase (matter) , high pressure , nanopore , content (measure theory) , chemistry , crystallography , chemical engineering , materials science , chemical physics , thermodynamics , nanotechnology , organic chemistry , physics , mathematics , engineering , mathematical analysis
The big squeeze : On applying pressure to ZIF‐8 (0.18 GPa), solvent can be squeezed into the porous cavities, initially increasing the pore size and unit‐cell volume. On increasing pressure further to 1.47 GPa, a phase transition takes place (see picture). This transition allows more solvent to enter the original nanopores and enlarges the narrow channels connecting these pores, resulting in higher porous volume and solvent content.