Postsynthetic Selective Ligand Cleavage by Solid–Gas Phase Ozonolysis Fuses Micropores into Mesopores in Metal–Organic Frameworks
| Autor: | Daniel Maspoch, Jorge Albalad, Heng Xu, Vincent Guillerm, Inhar Imaz |
|---|---|
| Přispěvatelé: | Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Barcelona Institute of Science and Technology (BIST), Centre d'Investigació en Nanociència i Nanotecnologia (ICN-CSIC), Universitat Autònoma de Barcelona (UAB), Ministerio de Economía y Competitividad (España), Generalitat de Catalunya, European Research Council, European Commission |
| Rok vydání: | 2018 |
| Předmět: |
Mixed-ligands
Selective ligands 02 engineering and technology [CHIM.INOR]Chemical Sciences/Inorganic chemistry 010402 general chemistry 01 natural sciences Biochemistry Catalysis Organic ligands Metalorganic frameworks (MOFs) Colloid and Surface Chemistry Adsorption Olefin Chemistry TOC image [CHIM.CRIS]Chemical Sciences/Cristallography [CHIM.COOR]Chemical Sciences/Coordination chemistry Multivariate MOFs Gas-phase ozonolysis Olefin fiber Ozonolysis Mesoporosity Solid-Gas Reaction Gas sorption properties Chemistry Sorption [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry Microporous material 021001 nanoscience & nanotechnology Combinatorial chemistry 0104 chemical sciences Metal organic framework Metal-Organic Frameworks (MOFs) Sublimation (phase transition) Metal-organic framework 0210 nano-technology Mesoporous material Post Synthetic Modification |
| Zdroj: | Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Journal of the American Chemical Society Journal of the American Chemical Society, American Chemical Society, 2018, 140 (44), pp.15022-15030. ⟨10.1021/jacs.8b09682⟩ Digital.CSIC. Repositorio Institucional del CSIC instname |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/jacs.8b09682 |
| Popis: | Herein we report a novel, ozone-based method for postsynthetic generation of mesoporosity in metal–organic frameworks (MOFs). By carefully selecting mixed-ligand Zr-fcu-MOFs based on organic ligand pairs in which one ligand has ozone-cleavable olefin bonds and the other ligand is ozone-resistant, we were able to selectively break the cleavable ligand via ozonolysis to trigger fusion of micropores into mesopores within the MOF framework. This solid–gas phase method is performed at room-temperature, and, depending on the cleavable ligand used, the resultant ligand-fragments can be removed from the ozonated MOF by either washing or sublimation. Compared to the corresponding highly microporous starting MOFs, the highly mesoporous product MOFs exhibit radically distinct gas sorption properties. This work was supported by the Spanish MINECO (projects PN MAT2015-65354-C2-1-R), the Catalan AGAUR (project 2014 SGR 80), and the ERC under the EU-FP7 (ERC-Co 615954). It was also funded by the CERCA Programme/Generalitat de Catalunya. ICN2 acknowledges the support of the Spanish MINECO through the Severo Ochoa Centres of Excellence Programme, under Grant SEV-2013-0295. V.G. thanks the Generalitat de Catalunya for a Beatriu de Pinós fellowship (2014 BP-B 00155) (Marie Curie Fellowship, EU funded project ITHACA). J.A. and H.X. acknowledge the Generalitat de Catalunya for FI fellowships. |
| Databáze: | OpenAIRE |
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