Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks
Abstract
A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.
- Inventors:
- Issue Date:
- Research Org.:
- University of California, Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2293989
- Patent Number(s):
- 11845058
- Application Number:
- 16/912,137
- Assignee:
- The Regents of the University of California (Oakland, CA)
- DOE Contract Number:
- AR0000103; AR0000402; SC0001015
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 06/25/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Long, Jeffrey R., and McDonald, Thomas M. Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks. United States: N. p., 2023.
Web.
Long, Jeffrey R., & McDonald, Thomas M. Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks. United States.
Long, Jeffrey R., and McDonald, Thomas M. Tue .
"Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks". United States. https://www.osti.gov/servlets/purl/2293989.
@article{osti_2293989,
title = {Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks},
author = {Long, Jeffrey R. and McDonald, Thomas M.},
abstractNote = {A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {12}
}
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