Highly stable Ni—M F6—NH2O/onpyrazine2(solvent)x metal organic frameworks and methods of use

Patent metadata

Field	Value
Publication number	US-10850268-B2
Application number	US-201916412512-A
Country	US
Kind code	B2
Filing date	May 15, 2019
Priority date	Apr 7, 2015
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

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 [MaMbF6-n(O/H2O)w(Ligand)x(solvent)y]z with a fluid composition and capturing one or more chemical species from the fluid composition.

First claim

What is claimed is:

1. A method of CO 2 removal, comprising:
contacting a metal organic framework with air from a confined space; and
capturing CO 2 from the air;
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 , further comprising, after capturing, recycling air having a reduced concentration of CO 2 back to the confined space.

3. The method of claim 1 , further comprising regenerating the metal organic framework once a CO 2 removal capacity of the metal organic framework is reached.

4. The method of claim 3 , wherein the energy requirements for the regenerating is about 2500 kJ/kg CO 2 or less.

Assignees

• Univ King Abdullah Sci & Tech

Inventors

• Eddaoudi Mohamed
• Adil Karim
• Belmabkhout Youssef
• Cadiau Amandine

Classifications

• B01D53/02 Primary

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

• Y02C20/40

  of CO2 · CPC title

• B01D2257/304

  Hydrogen sulfide · CPC title

• B01J2540/40

  Non-coordinating groups comprising nitrogen · CPC title

• B01D2253/116

  Molecular sieves other than zeolites · CPC title