TY - JOUR
T1 - A MOF@COF Composite with Enhanced Uptake through Interfacial Pore Generation
AU - Garzon-Tovar, Luis
AU - Pérez-Carvajal, Javier
AU - Yazdi, Amirali
AU - Hernández Muñoz, José
AU - Tarazona, Pedro
AU - Imaz, Inhar
AU - Zamora, Félix
AU - Maspoch Comamala, Daniel
PY - 2019
Y1 - 2019
N2 - Herein, we describe a new class of porous composites comprising metal-organic framework (MOF) crystals confined in single spherical matrices made of packed covalent-organic framework (COF) nanocrystals. These MOF@COF composites are synthesized through a two-step method of spray-drying and subsequent amorphous (imine-based polymer)-to-crystalline (imine-based COF) transformation. This transformation around the MOF crystals generates micro- and mesopores at the MOF/COF interface that provide far superior porosity compared to that of the constituent MOF and COF components added together. We report that water sorption in these new pores occurs within the same pressure window as in the COF pores. Our new MOF@COF composites, with their additional pores at the MOF/COF interface, should have implications for the development of new composites.
AB - Herein, we describe a new class of porous composites comprising metal-organic framework (MOF) crystals confined in single spherical matrices made of packed covalent-organic framework (COF) nanocrystals. These MOF@COF composites are synthesized through a two-step method of spray-drying and subsequent amorphous (imine-based polymer)-to-crystalline (imine-based COF) transformation. This transformation around the MOF crystals generates micro- and mesopores at the MOF/COF interface that provide far superior porosity compared to that of the constituent MOF and COF components added together. We report that water sorption in these new pores occurs within the same pressure window as in the COF pores. Our new MOF@COF composites, with their additional pores at the MOF/COF interface, should have implications for the development of new composites.
KW - Composite materials
KW - Covalent-organic frameworks
KW - Hierarchical porosity
KW - Interfaces
KW - Metal-organic frameworks
U2 - 10.1002/anie.201904766
DO - 10.1002/anie.201904766
M3 - Article
SN - 1433-7851
VL - 58
SP - 9512
EP - 9516
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 28
ER -