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Hydrogen Storage in a Microporous Metal−Organic Framework with Exposed Mn2+ Coordination Sites

Dincǎ, Mircea, Dailly, Anne, Liu, Yun, Brown, Craig M., Neumann, Dan. A., Long, Jeffrey R.·2006·Journal of the American Chemical Society

Abstract

Use of the tritopic bridging ligand 1,3,5-benzenetristetrazolate (BTT3-) enables formation of [Mn(DMF)6]3[(Mn4Cl)3(BTT)8(H2O)12]2.42DMF.11H2O.20CH3OH, featuring a porous metal-organic framework with a previously unknown cubic topology. Crystals of the compound remain intact upon desolvation and show a total H2 uptake of 6.9 wt % at 77 K and 90 bar, which at 60 g H2/L provides a storage density 85% of that of liquid hydrogen. The material exhibits a maximum isosteric heat of adsorption of 10.1 kJ/mol, the highest yet observed for a metal-organic framework. Neutron powder diffraction data demonstrate that this is directly related to H2 binding at coordinatively unsaturated Mn2+ centers within the framework.

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Authors
Dincǎ, M., Dailly, A., Liu, Y., Brown, C. M., Neumann, D. A., & Long, J. R.
Venue
Journal of the American Chemical Society
Published
2006-12-01
Volume
128
Issue
51
Pages
16876-16883
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2106259156
Cited by
1,137
References
0
FWCI
61.22
Type
journal article
Language
en
Open access
closed

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