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231223s2008 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/la703864a
|2 doi
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|a pubmed24n0595.xml
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|a eng
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| 100 |
1 |
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|a Liu, Yun
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Increasing the density of adsorbed hydrogen with coordinatively unsaturated metal centers in metal-organic frameworks
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 11.06.2008
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|a Date Revised 30.04.2008
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a Storing molecular hydrogen in porous media is one of the promising avenues for mobile hydrogen storage. In order to achieve technologically relevant levels of gravimetric density, the density of adsorbed H2 must be increased beyond levels attained for typical high surface area carbons. Here, we demonstrate a strong correlation between exposed and coordinatively unsaturated metal centers and enhanced hydrogen surface density in many framework structures. We show that the MOF-74 framework structure with open Zn(2+) sites displays the highest surface density for physisorbed hydrogen in framework structures. Isotherm and neutron scattering methods are used to elucidate the strength of the guest-host interactions and atomic-scale bonding of hydrogen in this material. As a metric with which to compare adsorption density with other materials, we define a surface packing density and model the strength of the H(2-)surface interaction required to decrease the H(2)-H(2) distance and to estimate the largest possible surface packing density based on surface physisorption methods
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Kabbour, Houria
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Brown, Craig M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Neumann, Dan A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ahn, Channing C
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 9 vom: 06. Mai, Seite 4772-7
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|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:24
|g year:2008
|g number:9
|g day:06
|g month:05
|g pages:4772-7
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| 856 |
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|u http://dx.doi.org/10.1021/la703864a
|3 Volltext
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