Hydrogen adsorption hysteretic

Another approach to metallation of a MOF is to chemically reduce a neutral MOF with concomitant cation uptake to balance the charge, which has been pursued by FIupp and coworkers. " Remarkably, reduction of the twofold interpenetrating MOF [Zn2(ndc)2(dipyni)] (ndc = 2,6-napthalenedicarboxylate dipyni = A,M-di-(4-pyridyl)-1,4,5,8-napthalenetetracarboxydiimide) can be achieved by direct reaction with Li(0) in DMF. H2 uptake is enhanced at an optimal Li(I) loading of 5 mol%, and the hydrogen adsorption and desorption profile is hysteretic indicative of dynamic framework behavior. Such dynamic behavior was not observed in the unmetalled MOF. This MOF can also... 

Zhao, X., Bo. Xiao, A.J. Fletcher, K.M. Thomas, D. Bradshaw, M.J. Rosseinsky, Hysteretic adsorption and desorption of hydrogen by nanoporous metal-organic frameworks. Science 306,1012,2004. 

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