Highly stable Ni-M F6-NH2O/onpyrazine2(solvent)x metal organic frameworks and methods of use
Provided herein are metal organic frameworks comprising metal nodes and N-donor organic ligands. Methods for capturing chemical species from fluid compositions comprise contacting a metal organic framework characterized by the formula [M a M b F 6-n (O/H 2 O) w (Ligand) x (solvent) y ] z with a fluid composition and capturing one or more chemical species from the fluid composition.
1. A method of capturing chemical species from a fluid composition, the method comprising:
contacting a metal organic framework with a fluid composition including one or more chemical species, wherein the chemical species include one or more of CO 2 , H 2 S, one or more olefin species, and one or more paraffin species; and
capturing at least one chemical species from the fluid composition;
wherein the metal organic framework comprises: a pillar of the formula (M b F 5 (O/H 2 O)), where M b is selected from periodic groups IIIA, IIIB, IVB, VB, VIB, and VIII; and a square grid of the formula (M a (ligand) x ), where M a is selected from periodic groups IB, IIA, IIB, IIIA, IVA, IVB, VIB, VIIB, and VIII, ligand is a polyfunctional organic ligand, and x is 1 or more; wherein the pillar associates with the square grid to form the metal organic framework.
2. The method of claim 1 , wherein the fluid composition is an industrial gas stream including CO 2 .
3. The method of claim 2 , wherein the captured chemical species includes CO 2 .
4. The method of claim 2 , wherein the industrial gas stream is selected from flue gas, syngas, biogas, landfill gas, and combinations thereof.
5. The method of claim 2 , wherein the industrial gas stream has an initial concentration of CO 2 in the range of about 1% to about 50%.
6. The method of claim 2 , wherein the industrial gas stream contains water.
7. The method of claim 1 , wherein the fluid composition is an industrial gas stream including H 2 S.
8. The method of claim 7 , wherein the captured chemical species includes H 2 S.
9. The method of claim 7 , wherein the industrial gas stream is selected from biogas, refinery off gases, olefins, and combinations thereof.
10. The method of claim 7 , wherein the industrial gas stream includes one or more of benzene, toluene, xylene, ethylbenzene, naphthalene, and styrene.
11. The method of claim 7 , wherein the industrial gas stream includes one or more of propane, propene, ethane, and ethylene.
12. The method of claim 1 , wherein the fluid composition includes a mixture of the one or more olefin species and the one or more paraffin species.
13. The method of claim 12 , wherein the captured chemical species includes at least one olefin species.
14. The method of claim 12 , wherein the olefin species are selected from ethylene, propylene, and combinations thereof.
15. The method of claim 12 , wherein the paraffin species are selected from ethane, propane, and combinations thereof.
16. The method of claim 12 , wherein the olefin species include at least ethylene and the paraffin species include at least ethane.
17. The method of claim 12 , wherein the olefin species include at least propylene and the paraffin species include at least propane.
18. The method of claim 1 , wherein the fluid composition includes H 2 S and one or more hydrocarbon species.
19. The method of claim 18 , wherein the captured chemical species includes H 2 S.
20. The method of claim 18 , wherein the hydrocarbon species include one or more of propane, propene, ethane, and ethene.