Chemical and Physical Solutions for Hydrogen Storage

Eberle, Ulrich; Felderhoff, Michael; Schüth, Ferdi

doi:10.1002/anie.200806293

Cited by 1,385 publications

(992 citation statements)

References 185 publications

(168 reference statements)

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“…An enormous amount of research is currently being devoted to metal-organic frameworks as H 2 storage materials [436]. Microporous polymer particles may also play a role in this field [437]. Carbon capture and sequestration is also one the energy related applications for which porous polymer particles can be useful.…”

Section: Future Applicationsmentioning

confidence: 99%

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Gökmen

Prez

2012

Progress in Polymer Science

446

309

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Section: Future Applicationsmentioning

confidence: 99%

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Gökmen

Prez

2012

Progress in Polymer Science

446

309

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“…Tri-branched C 3 -symmetric hexacarboxylate ligands with Cu(II) give highly porous (3,24)-connected frameworks incorporating {Cu(II) 2 } paddlewheels. These ubt-type frameworks comprise three types of polyhedral cage: a cuboctahedron, truncated tetrahedron and a truncated octahedron which are fused in the solid state in the ratio 1:2:1, respectively.…”

Section: Conspectusmentioning

confidence: 99%

“…This suggests that design of the hexacarboxylate linker in ubt networks can be used to control the separation between these cuboctahedral cages to enhance H 2 adsorption at low pressures. However, there is a limit to the length and size of linkers that can be applied in this (3,24)-connected net to form the fcc-packing of the cuboctahedra, as this type of close packing will be inhibited if there is steric hindrance and repulsion between the two closest axial ligands in the Cu(II) paddlewheel in the two closest cuboctahedra (Figure 8). 27 Thus, modifying the shape of the hexacarboxylate linker by introducing an angular component to the three co-planar isophthalate arms emanating from the C 3 -symmetric central core, results in a different type of tight packing of the cuboctahedra as observed in NOTT-122.…”

Section: Hexacarboxylate Frameworkmentioning

confidence: 99%

“…2 Physisorption of H 2 in porous solids is an attractive option since it can show fast kinetics and favourable thermodynamics in adsorption and release cycles. 3 Porous metal-organic frameworks (MOFs) are an important class of crystalline coordination polymer solids constructed from metal centers bridged by organic linkers, and are being intensively studied for H 2 storage due to their high internal surface areas and pore volumes. 4 The modular nature MOFs allows tuning of framework topologies, pore size and geometry to enhance H 2 adsorption properties.…”

Section: Introductionmentioning

confidence: 99%

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Studies on Metal–Organic Frameworks of Cu(II) with Isophthalate Linkers for Hydrogen Storage

et al. 2013

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.uk ConspectusHydrogen (H 2 ) is a promising alternative energy carrier due to its environmental benefits, high energy density and its abundance. However, development of a practical storage system to enable the "Hydrogen Economy" remains a huge challenge. Metal-organic frameworks (MOFs) are an important class of crystalline coordination polymers constructed by bridging metal centers with organic linkers, and show promise for H 2 storage due to their high surface area and tuneable properties. We summarize our research on novel porous materials with enhanced H 2 storage properties, and describe frameworks derived from 3,5-substituted dicarboxylates (isophthalates) that serve as versatile molecular building blocks for the construction of a range of interesting coordination polymers with Cu(II) ions.A series of materials has been synthesised by connecting linear tetracarboxylate linkers to {Cu(II) 2 } paddlewheel moieties. These (4,4)-connected frameworks adopt the fof-topology in which the Kagomé lattice layers formed by {Cu(II) 2 } paddlewheels and isophthalates are pillared by the bridging ligands. These materials exhibit high structural stability and permanent porosity, and the pore size, geometry and functionality can be modulated by variation of the organic linker to control the overall H 2 adsorption properties. NOTT-103 shows the highest H 2 storage capacity of 77.8 mg g −1 at 77 K, 60 bar among the fof-type frameworks. H 2 adsorption at low, medium and high pressures correlates with the isosteric heat of adsorption, surface area and pore volume, respectively.Tri-branched C 3 -symmetric hexacarboxylate ligands with Cu(II) give highly porous (3,24)-connected frameworks incorporating {Cu(II) 2 } paddlewheels. These ubt-type frameworks comprise three types of polyhedral cage: a cuboctahedron, truncated tetrahedron and a truncated octahedron which are fused in the solid state in the ratio 1:2:1, respectively. Increasing the length of the hexacarboxylate struts directly tunes the porosity of the resultant material from micro-to mesoporosity. These materials show exceptionally high H 2 uptakes owing to their high surface area and pore volume. NOTT-112, the first reported member of this family reported, adsorbs 111 mg g −1 of H 2 at 77 K , 77 bar. More recently, enhanced H 2 adsorption in these ubt-type frameworks has been achieved using combinations of polyphenyl groups linked by alkynes to give an overall gravimetric gas capacity for NU-100 of 164 mg g −1 at 77 K, 70 bar. However, due to its very low density NU-100 shows a lower volumetric capacity of 45.7 g L -1 compared with 55.9 g L -1 for NOTT-112, which adsorbs 2.3 wt% H 2 at 1 ...

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“…Bulk and nanoparticle metal hydrides have been extensively studied due to their importance in many applications such as hydrogen storage [16,17,18,19,20,21]. The novel scheme [8] is based on the modification of the optical properties of nanoparticles, i.e., the shift in energy of the LSP peak, during the H absorption process.…”

Section: Introductionmentioning

confidence: 99%

Tuning the plasmon energy of palladium–hydrogen systems by varying the hydrogen concentration

Silkin

Muiño

Chernov

et al. 2012

J. Phys.: Condens. Matter

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Abstract. First principles calculations are performed to obtain the dielectric function and loss spectra of bulk PdH x . Hydrogen concentrations between x = 0 and x = 1 are considered. The calculated spectra are dominated by a broad peak that redshifts in energy with x. The obtained bulk dielectric function is employed to compute the loss spectra of PdH x spherical nanoparticles as a function of x. The dominant plasmon peak in the spherical nanoparticle is lowered in energy with respect to the bulk case. However, the dependence of the resonance energy on the hydrogen concentration is roughly similar to that in bulk.

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Chemical and Physical Solutions for Hydrogen Storage

Cited by 1,385 publications

References 185 publications

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Porous polymer particles—A comprehensive guide to synthesis, characterization, functionalization and applications

Studies on Metal–Organic Frameworks of Cu(II) with Isophthalate Linkers for Hydrogen Storage

Tuning the plasmon energy of palladium–hydrogen systems by varying the hydrogen concentration

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