Fabrication of Oriented Polycrystalline MOF Superstructures
Linares-Moreau, Mercedes (Graz University of Technology. Institute of Physical and Theoretical Chemistry.)
Brandner, Lea A. (Graz University of Technology. Institute of Physical and Theoretical Chemistry)
Velásquez-Hernández, Miriam d.J. (Graz University of Technology. Institute of Physical and Theoretical Chemistry)
Fonseca, Javier (Institut Català de Nanociència i Nanotecnologia)
Benseghir, Youven (University of Vienna. Institute of Functional Materials and Catalysis)
Chin, Jia Min (University of Vienna. Institute of Functional Materials and Catalysis)
Maspoch Comamala, Daniel (Universitat Autònoma de Barcelona. Departament de Química)
Doonan, Christian (The University of Adelaide. Department of Chemistry)
Falcaro, Paolo (Graz University of Technology. Institute of Physical and Theoretical Chemistry)

Data:	2024
Resum:	The field of metal-organic frameworks (MOFs) has progressed beyond the design and exploration of powdery and single-crystalline materials. A current challenge is the fabrication of organized superstructures that can harness the directional properties of the individual constituent MOF crystals. To date, the progress in the fabrication methods of polycrystalline MOF superstructures has led to close-packed structures with defined crystalline orientation. By controlling the crystalline orientation, the MOF pore channels of the constituent crystals can be aligned along specific directions: these systems possess anisotropic properties including enhanced diffusion along specific directions, preferential orientation of guest species, and protection of functional guests. In this perspective, we discuss the current status of MOF research in the fabrication of oriented polycrystalline superstructures focusing on the specific crystalline directions of orientation. Three methods are examined in detail: the assembly from colloidal MOF solutions, the use of external fields for the alignment of MOF particles, and the heteroepitaxial ceramic-to-MOF growth. This perspective aims at promoting the progress of this field of research and inspiring the development of new protocols for the preparation of MOF systems with oriented pore channels, to enable advanced MOF-based devices with anisotropic properties.
Ajuts:	European Commission 771834 European Commission 101002176
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Publicat a:	Advanced materials, Vol. 36, Issue 1 (January 2024) , art. 2309645, ISSN 1521-4095

DOI: 10.1002/adma.202309645

34 p, 9.6 MB

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