Metal-organic frameworks for gas adsorption
AssigneeMassey University
InventorsOmid Taheri Qazvini, Shane Telfer
Life of this patent
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Abstract
Disclosed are metal organic frameworks (MOFs) for adsorbing guest species, methods for the separation of gases using the MOFs, and systems comprising the MOFs. The MOFs comprise a plurality of secondary building units (SBUs), each SBU comprising a repeating unit of one metal cation connected to another metal cation via a first moiety of an organic linker; a layer of connected adjacent SBUs in which a second moiety of the linker in a first SBU is connected to a metal cation of an adjacent SBU, and wherein adjacent layers are connected to each other via linker-to-linker bonding interactions.
Claims13
A method for the separation of carbon dioxide from a mixture, comprising contacting the mixture with a sorbent comprising a metal organic framework (MOF), wherein the MOF comprises:
- a plurality of secondary building units (SBUs), each SBU comprising a repeating unit of one metal cation connected to another metal cation via a first moiety of an organic linker;
- a layer of connected adjacent SBUs in which a second moiety of the linker in a first SBU is connected to a metal cation of an adjacent SBU, and
- wherein adjacent layers are connected to each other via linker-to-linker bonding interactions;
- and
- wherein each metal ion is selected from cobalt(II) ions, manganese(II) ions and nickel(II) ions, the organic linker is 5-aminoisophthalate, the first moiety is a carboxylate group and the second moiety is an amino group.
A system for separating carbon dioxide from a mixture comprising:
- a chamber having an inlet adapted to direct the mixture into the chamber;
- and
- a sorbent comprising a metal organic framework (MOF) positioned within the chamber, wherein the MOF comprises:
- a plurality of secondary building units (SBUs), each SBU comprising a repeating unit of one metal cation connected to another metal cation via a first moiety of an organic linker;
- a layer of connected adjacent SBUs in which a second moiety of the organic linker in a first SBU is connected to a metal cation of an adjacent SBU,
- wherein adjacent layers are connected to each other via linker-to-linker bonding interactions;
- and wherein each metal ion is selected from cobalt(II) ions, manganese(II) ions and nickel(II) ions, the organic linker is 5-aminoisophthalate, the first moiety is a carboxylate group and the second moiety is an amino group.
Dependencies are inferred from the claim text.