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US 8,841,471 B2Granted
Open metal organic frameworks with exceptional surface area and high gas storage capacity
AssigneesThe Regents of the University of California, Foundation of Soongsil University-Industry Cooperation
InventorsOmar M. Yaghi, Jaheon Kim, Nakeun Ko, Sang Beom Choi, Hiroyasu Furukawa
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Abstract
The disclosure provides metal organic frameworks comprising exception porosity.
Claims20
A metal-organic framework (MOF) comprising:
- a plurality of metal clusters, wherein each metal cluster comprises one or more metal ions;
- and
- a plurality of at least one first-multidentate aromatic tritopic linking ligands comprising at least one first linking ligand and at least one second linking ligand which is different from the first linking ligand, wherein the linking ligands connect adjacent metal clusters, and wherein the plurality of linking ligands having a sufficient number of accessible sites for atomic or molecular adsorption such that the surface area of the metal-organic framework is greater than about 5500 m2/g.
A method of forming a MOF, the method comprising:
- combining a solution comprising a solvent and metal ions selected from the group consisting Group 1 through 16 metals including actinides, and lanthanides, and combinations thereof with at least one first linking ligand comprising the general formula of I-V:
- and with at least one second linking ligand comprising the general formula VI-IX:
- such that the surface area of the metal-organic framework is greater than 5500 m2/g.
Dependencies are inferred from the claim text.