Porous metal-organic framework with pyrimidine groups for methane storage exhibiting high working capacity

Patent metadata

Field	Value
Publication number	US-10150095-B2
Application number	US-201515127514-A
Country	US
Kind code	B2
Filing date	Mar 20, 2015
Priority date	Mar 21, 2014
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

Disclosed herein are metal-organic frameworks (MOF) and uses thereof, including those comprising a repeat unit of the formula [Cu 2 L(H 2 O) 2 ]-5DMF-3H 2 O, wherein L is a ligand of the formula: These are useful for many applications, including in the purification of hydrogen gas from production byproducts CH 4 and CO 2 , sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membrane and analytical devices.

First claim

What is claimed is:

1. A metal-organic framework (MOF) comprising a repeat unit of the formula [Cu 2 L(H 2 O) 2 ], wherein L is a ligand of the formula:

2. The MOF of claim 1 , wherein the MOF is activated for sorption of gas molecules.

3. The MOF of claim 1 , further comprising one or more than one type of guest molecule.

4. The MOF of claim 1 , wherein the repeating formula is further defined as [Cu 2 L(H 2 O) 2 ].5DMF.3H 2 O.

5. The MOF of claim 1 , wherein the solvent molecules occupy the pores of the MOF.

6. The MOF of claim 3 , wherein one type of guest molecule is a gas molecule.

7. The MOF of claim 6 , wherein the gas molecule is H 2 , CO 2 , or CH 4 .

8. The MOF of claim 1 , having a weight percentage at least 90% attributable to repeat units of the formula [Cu 2 L(H 2 O) 2 ].5DMF.3H 2 O.

9. The MOF of claim 1 , wherein the MOF has been adhered to a fixed surface.

10. A method of separating two or more compounds using an MOF comprising:
(a) obtaining a MOF comprising a repeat unit of the formula [Cu 2 L(H 2 O) 2 ].5DMF.3H 2 O, wherein L is a ligand of formula:

and
(b) combining the MOF with a mixture comprising a first compound and a second compound; and
(c) separating the first compound from the second compound.

11. The method of claim 10 , wherein the MOF is activated for sorption of gas molecules.

12. The method of claim 10 , wherein the first compound is H 2 .

13. The method of claim 10 , wherein the second compound is CH 4 or CO 2 .

14. The method of claim 10 , wherein the mixture further comprises a third compound.

15. The method of claim 10 , wherein the mixture comprises H 2 and CH 4 .

16. The method of claim 10 , wherein the mixture comprises H 2 and CO 2 .

17. The method of claim 10 , wherein the separation is carried out at a pressure from about 4 mPa to about 15 mPa.

18. The method of claim 10 , wherein the MOF is adhered to a fixed bed surface.

19. The method of claim 10 , wherein the MOF is packed in an absorber.

20. A method of using a metal organic framework (MOF), wherein the MOF is an MOF of claim 1 and the MOF is used in an application selected from sensing, heterogeneous catalysis, drug delivery, lithium sulfide battery, membranes, and analytical devices.

Assignees

• Univ Texas

Inventors

• Chen Banglin
• Li Bin
• Wen hui-min

Classifications

• Y02P20/152

  Cross-Sectional Technologies · mapped topic

• B01J2531/16

  Copper · CPC title

• B01J2531/0219

  Bimetallic complexes, i.e. comprising one or more units of two metals, with metal-metal bonds but no all-metal (M)n rings, e.g. Cr2(OAc)4 · CPC title

• B01D2256/16

  Hydrogen · CPC title

• Y02C10/08

  Cross-Sectional Technologies · mapped topic