High and Reversible Ammonia Uptake in Mesoporous Azolate Metal–Organic Frameworks with Open Mn, Co, and Ni Sites

A series of new mesoporous metal–organic frameworks (MOFs) made from extended bisbenzenetriazolate linkers exhibit coordinatively unsaturated metal sites that are responsible for high and reversible uptake of ammonia. Isostructural Mn, Co, and Ni materials adsorb 15.47, 12.00, and 12.02 mmol of NH3/...

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Published inJournal of the American Chemical Society Vol. 138; no. 30; pp. 9401 - 9404
Main Authors Rieth, Adam J, Tulchinsky, Yuri, Dincă, Mircea
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 03.08.2016
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Summary:A series of new mesoporous metal–organic frameworks (MOFs) made from extended bisbenzenetriazolate linkers exhibit coordinatively unsaturated metal sites that are responsible for high and reversible uptake of ammonia. Isostructural Mn, Co, and Ni materials adsorb 15.47, 12.00, and 12.02 mmol of NH3/g, respectively, at STP. Importantly, these near-record capacities are reversible for at least three cycles. These results demonstrate that azolate MOFs are sufficiently thermally and chemically stable to find uses in recyclable sorption, storage, and potentially separation of chemically challenging and/or corrosive gases, especially when designed to exhibit a high density of open metal sites.
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content type line 23
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.6b05723