A Mesoporous Metal–Organic Framework

Klein, Nicole; Senkovska, Irena; Gedrich, Kristina; Stoeck, Ulrich; Henschel, Antje; Muêller, U.; Kaskel, Stefan

doi:10.1002/anie.200904599

Cited by 321 publications

(170 citation statements)

References 29 publications

(32 reference statements)

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“…Figure 1a shows the adsorption isotherms of PP-AC in a gravimetric basis (wt.% methane per weight of dry carbon) for R w 0.6, 1.1 and 1.8 (dry sample was included for the sake of comparison). At this point, it is interesting to highlight that the methane adsorption capacity for the dry carbon at 10 MPa (24 wt.% or 0.24 g g À 1 ) is completely reversible and it is among the highest values ever reported in the literature, even if compared with carbons of similar textural properties or metal-organic frameworks [6][7][8][9][10]18 . Concerning the wet samples and independently of R w , the methane adsorption capacity is low compared with the dry sample at least at low pressures (below 3 MPa), most probably due to pore blocking by preadsorbed water.…”

Section: Resultsmentioning

confidence: 94%

“…An alternative solution concerns the use of porous materials to store NG (adsorbed natural gas (ANG)) at a similar high density, but substantially lower pressure. Unfortunately, actual storage on porous solids, mainly metal-organic frameworks and carbon materials, exhibits certain limitations, at least in a gravimetric basis, to fulfil the new methane program from the US Department of Energy (see DOE MOVE program at https://arpa-e-foa.energy.gov) [5][6][7][8][9][10] .…”

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confidence: 99%

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Methane hydrate formation in confined nanospace can surpass nature

et al. 2015

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Natural methane hydrates are believed to be the largest source of hydrocarbons on Earth. These structures are formed in specific locations such as deep-sea sediments and the permafrost based on demanding conditions of high pressure and low temperature. Here we report that, by taking advantage of the confinement effects on nanopore space, synthetic methane hydrates grow under mild conditions (3.5 MPa and 2°C), with faster kinetics (within minutes) than nature, fully reversibly and with a nominal stoichiometry that mimics nature. The formation of the hydrate structures in nanospace and their similarity to natural hydrates is confirmed using inelastic neutron scattering experiments and synchrotron X-ray powder diffraction. These findings may be a step towards the application of a smart synthesis of methane hydrates in energy-demanding applications (for example, transportation).

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Section: Resultsmentioning

confidence: 94%

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confidence: 99%

Methane hydrate formation in confined nanospace can surpass nature

et al. 2015

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“…Similar values (0.230 g/g at 100 bar and 298K) were reported for a mesoporous MOF with defined, modular pore system and a large pore volume of 2.02 cm 3 /g. 5 The gravimetric value is low because authors have used the crystal density of the material − in some cases above 2.0 g/cm 3 − to calculate the apparently high volumetric capacity. Despite the potential of MOFs for highpressure methane storage, these materials are characterized, except for some specific cases, by a low mechanical stability under pressure.…”

Section: Introductionmentioning

confidence: 99%

High-Pressure Methane Storage in Porous Materials: Are Carbon Materials in the Pole Position?

et al. 2015

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Natural gas storage on porous materials (ANG) is a promising alternative to conventional on-board compressed (CNG) or liquefied natural gas (LNG). Until date, MOF materials have apparently been the only system published in the literature able to reach the new DOE value of 263 cm 3 (STP: 273.15K, 1 atm)/cm 3 ; however, this value was obtained by using the ideal single-crystal density to calculate the volumetric capacity. Here we prove experimentally and for the first time that properly designed activated carbon materials can really achieve the new DOE value but avoiding the additional drawback usually associated with MOF materials, i.e. the low mechanical stability under pressure (conforming) required for any practical application.

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“…Using the same metal, di erent organic linkers render di erent metal cluster and di erent structure in turn, such as Zn-tetramer of MOF-5 and Zn-dimer of Zn-HKUST-1 [5,6]. Compared with H 2 BDC (H 2 BDC = 1,4-benzenedicarboxylic acid) [7][8][9][10], the non-linear FDA (FDA = furan-2,5-dicarboxylic acid) possesses two advantages as molecular building block: the high openness net with the exible bond angle of two carboxyl (126°) and the polarity owing to the oxygen atom of furan ring, which is potentially applied for gas-storage and gasseparation. In this work, a 2-dimensional coordination polymer [Zn(DMI)(FDA)] (DMI = 1,3-dimethyl-2-imidazolidinone) containing the paddle-wheel Zn-dimer, has been synthesized with DMI as the solvent.…”

Section: Discussionmentioning

confidence: 99%