A Chromium Terephthalate-Based Solid with Unusually Large Pore Volumes and Surface Area

American Association for the Advancement of Science (AAAS) - Tập 309 Số 5743 - Trang 2040-2042 - 2005
Christian Serre1,2,3,4, Caroline Mellot‐Draznieks4,1,2,3, Franck Millange1,2,3,4, Julien Dutour1,2,3,4, L. Thomé1,2,3,4, I. Margiolaki1,2,3,4
1European Radiation Synchotron Facility, 38042 Grenoble, France.
2Institut Lavoisier, CNRS Unité Mixte de Recherche 8637, Université de Versailles St-Quentin en Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France.
3Institut Universitaire de France, 103 boulevard Saint-Michel, 75005 Paris, France
4Royal Institution, 21 Albemarle Street, London W1S 4BS, UK.

Tóm tắt

We combined targeted chemistry and computational design to create a crystal structure for porous chromium terephthalate, MIL-101, withverylargeporesizes and surface area. Its zeotype cubic structure has a giant cell volume (∼702,000 cubic angstroms), a hierarchy of extra-large pore sizes (∼30 to 34 angstroms), and a Langmuir surface area for N 2 of ∼5900 ± 300 square meters per gram. Beside the usual properties of porous compounds, this solid has potential as a nanomold for monodisperse nanomaterials, as illustrated here by the incorporation of Keggin polyanions within the cages.

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Tài liệu tham khảo

10.1038/35010088

F. Schüth et al., Handbook of Porous Solids (Wiley-VCH, Weinheim, Germany, 2002), vol. 3, p. 563.

10.1021/ja049408c

G. Férey et al., Chem. Commun.2003, 2276 (2003).

10.1126/science.1062126

10.1002/(SICI)1521-3773(19980619)37:11<1460::AID-ANIE1460>3.0.CO;2-Z

10.1038/352320a0

C. Serre et al., Angew. Chem. Int. Ed. Engl.43, 6286 (2004).

S. Girard et al., Stud. Surf. Sci. Catal.135, 254 (2001).

10.1021/ja020999l

10.1002/1521-3765(20020916)8:18<4102::AID-CHEM4102>3.0.CO;2-3

C. Mellot-Draznieks et al., Angew. Chem. Int. Ed. Engl.39, 2271 (2000).

10.1002/anie.200454251

10.1002/zaac.200400416

10.1002/anie.200460592

10.1021/ar040163i

Materials and methods are available as supporting material on Science Online.

Available at www.iza-structure.org/databases.

10.1006/jssc.2000.8667

10.1038/nature02311

Materials and methods are available as supporting material on Science Online.

A. Muller et al., Angew. Chem. Int. Ed. Engl.39, 3414 (2000).

Initial hydrogen storage measurements were ∼0.45 and 3.75 weight percent at 293 K and 77 K respectively at 2 MPa. The values at 77 K seem to be the highest for MOFs after the contestation of previous results ( 3 ).

Initial introduction of semiconducting ZnS nanoparticles in the pores of MIL-101 was successfully achieved with a ZnS/Cr ratio close to 0.5.

Incorporation of ibuprofen within MIL-101 has been achieved in large amounts (∼1 g of drug per gram of MIL-101) with a total release of the drug within a few days.

We thank F. Taulelle and M. Haouas for collecting solid state NMR M. Latroche for hydrogen sorption measurements P. Mialane for providing the Keggin salt and for helpful discussions S. Floquet and E. Cadot for helpful discussion about the introduction of ZnS nanoparticles and P. Horcajada and M. Vallet-Regi for the drug incorporation study.