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US 7,799,120 B2Granted
Metal-organic frameworks with exceptionally high capacity for storage of carbon dioxide at room-temperature
AssigneeThe Regents of the University of Michigan
InventorsOmar M. Yaghi, Andrew Robert Millward
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Abstract
A carbon dioxide storage system includes a container and a conduit attached to the container for introducing or removing a carbon dioxide-containing composition from the container. A carbon dioxide storage material is positioned within the container. The carbon dioxide-storage material includes a metal-organic framework, which has a sufficient surface area to store at least 10 carbon dioxide molecules per formula unit of the metal-organic framework at a temperature of about 25° C.
Claims23
A carbon dioxide storage system comprising:
- a container;
- an inlet attached to the container, the inlet being adapted to direct a carbon dioxide-containing composition into the container;
- and
- a carbon dioxide storage material positioned within the container, the carbon dioxide storage material comprising a metal-organic framework, the metal-organic framework having sufficient surface area to store at least 10 carbon dioxide molecules per formula unit of the metal-organic framework at a temperature of about 25° C., the metal-organic framework comprising at least one open metal site, an open metal site being a position adjacent to a metal in a metal cluster from which a ligand or other chemical moiety has been removed, rendering that metal cluster reactive for adsorption of a chemical species having available electron density for attachment to the metal cluster.
1 more element
Dependencies are inferred from the claim text.