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Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs?
The effect of synthesis pH and H(2)O/EtOH molar ratio on the textural properties of different aluminium trimesate metal organic frameworks (MOFs) prepared in the presence of the well-known cationic surfactant cetyltrimethylammonium bromide (CTAB) at 120 °C was studied with the purpose of obtaining a...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Royal Society of Chemistry
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4456781/ https://www.ncbi.nlm.nih.gov/pubmed/26246799 http://dx.doi.org/10.1039/c4ce02324b |
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author | Seoane, B. Dikhtiarenko, A. Mayoral, A. Tellez, C. Coronas, J. Kapteijn, F. Gascon, J. |
author_facet | Seoane, B. Dikhtiarenko, A. Mayoral, A. Tellez, C. Coronas, J. Kapteijn, F. Gascon, J. |
author_sort | Seoane, B. |
collection | PubMed |
description | The effect of synthesis pH and H(2)O/EtOH molar ratio on the textural properties of different aluminium trimesate metal organic frameworks (MOFs) prepared in the presence of the well-known cationic surfactant cetyltrimethylammonium bromide (CTAB) at 120 °C was studied with the purpose of obtaining a MOF with hierarchical pore structure. Depending on the pH and the solvent used, different topologies were obtained (namely, MIL-96, MIL-100 and MIL-110). On the one hand, MIL-110 was obtained at lower temperatures than those commonly reported in the literature and without additives to control the pH; on the other hand, MIL-100 with crystallite sizes as small as 30 ± 10 nm could be easily synthesized in a mixture of H(2)O and EtOH with a H(2)O/EtOH molar ratio of 3.4 at pH 2.6 in the presence of CTAB. The resulting material displays a hierarchical porosity that combines the microporosity from the MOF and the non-ordered mesopores defined in between the MOF nanoparticles. Interestingly, the maximum of the pore size distribution could be varied between 3 and 33 nm. Finally, at pH 2.5 and using water as a solvent, platelets of MIL-96, a morphology never observed before for this MOF, were synthesized with a (001) preferential crystal orientation, the (001) plane running parallel to the bipyramidal cages of the MIL-96 topology. |
format | Online Article Text |
id | pubmed-4456781 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-44567812015-08-03 Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs? Seoane, B. Dikhtiarenko, A. Mayoral, A. Tellez, C. Coronas, J. Kapteijn, F. Gascon, J. CrystEngComm Chemistry The effect of synthesis pH and H(2)O/EtOH molar ratio on the textural properties of different aluminium trimesate metal organic frameworks (MOFs) prepared in the presence of the well-known cationic surfactant cetyltrimethylammonium bromide (CTAB) at 120 °C was studied with the purpose of obtaining a MOF with hierarchical pore structure. Depending on the pH and the solvent used, different topologies were obtained (namely, MIL-96, MIL-100 and MIL-110). On the one hand, MIL-110 was obtained at lower temperatures than those commonly reported in the literature and without additives to control the pH; on the other hand, MIL-100 with crystallite sizes as small as 30 ± 10 nm could be easily synthesized in a mixture of H(2)O and EtOH with a H(2)O/EtOH molar ratio of 3.4 at pH 2.6 in the presence of CTAB. The resulting material displays a hierarchical porosity that combines the microporosity from the MOF and the non-ordered mesopores defined in between the MOF nanoparticles. Interestingly, the maximum of the pore size distribution could be varied between 3 and 33 nm. Finally, at pH 2.5 and using water as a solvent, platelets of MIL-96, a morphology never observed before for this MOF, were synthesized with a (001) preferential crystal orientation, the (001) plane running parallel to the bipyramidal cages of the MIL-96 topology. Royal Society of Chemistry 2015-02-21 2015-01-23 /pmc/articles/PMC4456781/ /pubmed/26246799 http://dx.doi.org/10.1039/c4ce02324b Text en This journal is © The Royal Society of Chemistry 2015 http://creativecommons.org/licenses/by/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution 3.0 Unported License (http://creativecommons.org/licenses/by/3.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Chemistry Seoane, B. Dikhtiarenko, A. Mayoral, A. Tellez, C. Coronas, J. Kapteijn, F. Gascon, J. Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs? |
title | Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs?
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title_full | Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs?
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title_fullStr | Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs?
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title_full_unstemmed | Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs?
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title_short | Metal organic framework synthesis in the presence of surfactants: towards hierarchical MOFs?
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title_sort | metal organic framework synthesis in the presence of surfactants: towards hierarchical mofs? |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4456781/ https://www.ncbi.nlm.nih.gov/pubmed/26246799 http://dx.doi.org/10.1039/c4ce02324b |
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