Metal-organic framework-based sorbents and methods of synthesis thereof

Patent metadata

Field	Value
Publication number	US-10413858-B2
Application number	US-201615392466-A
Country	US
Kind code	B2
Filing date	Dec 28, 2016
Priority date	Dec 28, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A carbon dioxide capture and release method of forming a MOF matrix material including at least one metal-organic-framework crystal that includes at least one metal ion or metal ion cluster coordinated to polydentate organic ligands. The method includes forming a positive moisture swing CO2 host by application of at least a portion of the MOF matrix material to at least a portion of a good, and exposing the good to a feed gas. The method also includes altering the absorption and desorption of CO2 in the CO2 host through a swing absorption/desorption process of moisture content, where an equilibrium pressure of CO2 over the CO2 host is based at least in part on the moisture content. The metal-organic-framework crystal can be UIO-66 including Zr6O4(OH)4(CO2)12 clusters linked by terephthalate acid ligands, and/or Zr6O4(OH)4(CO2)12 clusters linked by amino-terephthalic acid ligands, and/or Zr6O4(OH)4(CO2)12 clusters linked by nitro-terephthalic acid ligands.

First claim

The invention claimed is:

1. A carbon dioxide capture and release method comprising:
forming a metal-organic framework (MOF) matrix material including at least one metal-organic-framework crystal, the at least one metal-organic-framework crystal comprising at least one metal ion or metal ion cluster coordinated to polydentate organic ligands; and
forming a positive moisture swing CO 2 host by application of at least a portion of the MOF matrix material to at least a portion of a good;
exposing the good to a feed gas, wherein the feed gas is ambient air; and
altering the absorption and desorption of CO 2 in the CO 2 host through a swing absorption/desorption process of moisture content; and
wherein an equilibrium pressure of CO 2 over the CO 2 host is based at least in part on the moisture content.

2. The method of claim 1 , wherein the swing absorption/desorption process comprises altering the moisture content of the CO 2 host.

3. The method of claim 1 , wherein the moisture content is altered based on a moisture content of the feed gas.

4. The method of claim 1 , wherein a positive moisture swing comprises an increase in moisture in the CO 2 host and a related increase in CO 2 absorption by the CO 2 host.

5. The method of claim 1 , wherein the at least one metal-organic-framework crystal comprises UIO-66.

6. The method claim 5 , wherein the UIO-66 comprises Zr 6 O 4 (OH) 4 (CO 2 ) 12 clusters linked by terephthalate acid ligands.

7. The method claim 5 , wherein the UIO-66 comprises Zr 6 O 4 (OH) 4 (CO 2 ) 12 clusters linked by amino-terephthalic acid ligands.

8. The method claim 5 , wherein the UIO-66 comprises Zr 6 O 4 (OH) 4 (CO 2 ) 12 clusters linked by nitro-terephthalic acid ligands.

9. The method of claim 1 , wherein the polydentate organic ligand includes at least one of terephthalate acid, amino-terephthalic acid, and nitro-terephthalic acid.

10. The method of claim 1 , wherein the MOF matrix material comprises chromium (III) terephthalate.

11. The method of claim 1 , wherein the MOF matrix material comprises a zeolitic imidazolate framework comprising ZIF-8.

12. The method of claim 1 , wherein the good comprises glass, glass-ceramic, or ceramic oxide bead or particle.

13. The method of claim 12 , wherein ceramic oxide is alumina.

14. The method of claim 1 , wherein the good comprises a gas separation or storage tube or cylinder.

15. The method of claim 14 , wherein the gas separation or storage tube or cylinder includes the MOF matrix material.

16. The method of claim 1 , wherein the MOF matrix material is formed from a mixture of ZrCl 4 and terephthalic acid in dimethylformamide and acetic acid heated to 120° C. for 24 hours.

17. The method of claim 5 , wherein the equilibrium pressure of CO 2 is based on the polydentate organic ligand.

18. The method of claim 5 , wherein the polydentate organic ligand includes terephthalate acid, and at least one of amino-terephthalic acid, and nitro-terephthalic acid, and
wherein the equilibrium pressure of CO 2 over the CO 2 host is based on the relative proportions of terephthalate acid, amino-terephthalic acid, and nitro-terephthalic acid.

19. The method of claim 1 , wherein the application comprises depositing the MOF matrix material on or in at least a portion of the good.

Assignees

• Univ Arizona State

Inventors

• Mu Bin
• Armstrong Mitchell
• Wright Allen
• Lackner Klaus

Classifications

• B01D53/04

  with stationary adsorbents {(B01D53/025 takes precedence)} · CPC title

• B01D53/02

  by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)} · CPC title

• B01D2259/40086

  by using a purge gas (B01D2259/4009 takes precedence) · CPC title

• B01J20/28016

  Particle form · CPC title

• B01D53/0454 Primary

  Controlling adsorption (controlling temperature swing adsorption B01D53/0462, controlling pressure swing adsorption B01D53/047) · CPC title