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| Pàgina inicial > Articles > Articles publicats > Spray drying for making covalent chemistry : |
(Institut Català de Nanociència i Nanotecnologia) (Institut Català de Nanociència i Nanotecnologia) (Institut Català de Nanociència i Nanotecnologia) (Institut Català de Nanociència i Nanotecnologia)| Data: | 2017 |
| Resum: | Covalent postsynthetic modification (PSM) of metal-organic frameworks (MOFs) has attracted much attention due to the possibility of tailoring the properties of these porous materials. Schiff-base condensation betwecn an amine and an aldehyde is one of the most common reactions in the PSM of MOFs. Here, we report the use of the spray drying technique to perform this class of organic reactions, either betwecn discrete organic molecules or on the pore surfaces of MOFs, in a very fast (1-2 s) and continuous way. Using spray drying, we show the PSM of two MOFs, the amine-terminated UiO-66-NH and the aldehyde-terminated ZIF-90, achieving conversion efficiencies up to 20 and 42%, respectively. Moreover, we demonstrate that it can also be used to postsynthetically cross-link the aldehyde groups of ZIF-90 using a diamine molecule with a conversion efficiency of 70%. |
| Ajuts: | European Commission 615954 Ministerio de Economía y Competitividad RYC-2010-06530 Ministerio de Economía y Competitividad SEV-2013-0295 European Commission 685727 |
| Drets: | Tots els drets reservats.  |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió acceptada per publicar |
| Matèria: | Covalent chemistry ; Diamine molecules ; Metal organic framework ; Metalorganic frameworks (MOFs) ; Organic molecules ; Postsynthetic modification ; Schiff base condensation ; Spray drying technique |
| Publicat a: | Journal of the American Chemical Society, Vol. 139, Núm. 2 (January 2017) , p. 897-903, ISSN 1520-5126 |
23 p, 959.0 KB |
54 p, 7.0 MB |
