Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 11, Pages 3866-+Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja809954r
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Funding
- U.S. Department of Energy [DE-FG02-08-15967]
- Northwestern NSEC
- Argonne National Laboratory
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A new noncatenated metal-organic framework containing pendant alcohol functionalities was synthesized. The alcohols were then post-synthetically converted to either lithium or magnesium alkoxides, with the incorporated metals anchored far from nodes or carboxylate functionalities. The metal alkoxide sites can be obtained stoichiometrically while maintaining the permanent porosity and large surface area of the parent hydroxylated material. The incorporated metal ions are found to induce an unusual pattern of binding energetics for H-2: isosteric heats of adsorption increase, rather than decrease, With increasing H-2 loading. Additionally, at 1 atm and 77 K, uptake (at least with low Li+ loading) is increased by two hydrogen molecules per Li+.
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