Cooperative Carbon Dioxide Adsorption in Alcoholamine- and Alkoxyalkylamine-Functionalized Metal–Organic Frameworks
- Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
- Cornell Univ., Ithaca, NY (United States). Dept. of Chemistry and Chemical Biology
- Univ. of California, Berkeley, CA (United States). Dept. of Physics and Kavli Energy Nanosciences Inst.; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Molecular Foundry
- Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering and Dept. of Chemistry and Berkeley Energy and Climate Inst.
- Univ. of California, Berkeley, CA (United States). Dept. of Chemistry
- Univ. of California, Berkeley, CA (United States). Dept. of Chemistry; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
- Department of ChemistryThe University of California, Berkeley Berkeley CA 94720 USA
- Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering and Dept. of Chemistry
Here, a series of structurally diverse alcoholamine- and alkoxyalkylamine-functionalized variants of the metal–organic framework Mg2(dobpdc) are shown to adsorb CO2 selectively via cooperative chain-forming mechanisms. Solid-state NMR spectra and optimized structures obtained from van der Waals-corrected density functional theory calculations indicate that the adsorption profiles can be attributed to the formation of carbamic acid or ammonium carbamate chains that are stabilized by hydrogen bonding interactions within the framework pores. These findings significantly expand the scope of chemical functionalities that can be utilized to design cooperative CO2 adsorbents, providing further means of optimizing these powerful materials for energy-efficient CO2 separations.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- National Institutes of Health (NIH); USDOE National Energy Technology Laboratory (NETL); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-05CH11231; SC0019992
- OSTI ID:
- 1634073
- Journal Information:
- Angewandte Chemie, Journal Name: Angewandte Chemie Journal Issue: 44 Vol. 132; ISSN 0044-8249
- Publisher:
- German Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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