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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b00889
|2 doi
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|a pubmed24n0952.xml
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|a (NLM)29940736
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Joshi, Jayraj N
|e verfasserin
|4 aut
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| 245 |
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|a Probing Metal-Organic Framework Design for Adsorptive Natural Gas Purification
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 26.09.2018
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|a Date Revised 26.09.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Parent and amine-functionalized analogues of metal-organic frameworks (MOFs), UiO-66(Zr), MIL-125(Ti), and MIL-101(Cr), were evaluated for their hydrogen sulfide (H2S) adsorption efficacy and post-exposure acid gas stability. Adsorption experiments were conducted through fixed-bed breakthrough studies utilizing multicomponent 1% H2S/99% CH4 and 1% H2S/10% CO2/89% CH4 natural gas simulant mixtures. Instability of MIL-101(Cr) materials after H2S exposure was discovered through powder X-ray diffraction and porosity measurements following adsorbent pelletization, whereas other materials retained their characteristic properties. Linker-based amine functionalities increased H2S breakthrough times and saturation capacities from their parent MOF analogues. Competitive CO2 adsorption effects were mitigated in mesoporous MIL-101(Cr) and MIL-101-NH2(Cr), in comparison to microporous UiO-66(Zr) and MIL-125(Ti) frameworks. This result suggests that the installation of H2S binding sites in large-pore MOFs could potentially enhance H2S selectivity. In situ Fourier transform infrared measurements in 10% CO2 and 5000 ppm H2S environments suggest that framework hydroxyl and amine moieties serve as H2S physisorption sites. Results from this study elucidate design strategies and stability considerations for engineering MOFs in sour gas purification applications
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Zhu, Guanghui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Jason J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Carter, Eli A
|e verfasserin
|4 aut
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|a Jones, Christopher W
|e verfasserin
|4 aut
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|a Lively, Ryan P
|e verfasserin
|4 aut
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|a Walton, Krista S
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 34(2018), 29 vom: 24. Juli, Seite 8443-8450
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:34
|g year:2018
|g number:29
|g day:24
|g month:07
|g pages:8443-8450
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|u http://dx.doi.org/10.1021/acs.langmuir.8b00889
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