Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents

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dc.citation.journalTitleScientific Reportsen_US
dc.citation.volumeNumber4en_US
dc.contributor.authorAndreoli, Enricoen_US
dc.contributor.authorDillon, Eoghan P.en_US
dc.contributor.authorCullum, Laurieen_US
dc.contributor.authorAlemany, Lawrence B.en_US
dc.contributor.authorBarron, Andrew R.en_US
dc.contributor.orgShared Equipment Authorityen_US
dc.date.accessioned2014-12-15T17:34:19Z
dc.date.available2014-12-15T17:34:19Z
dc.date.issued2014en_US
dc.description.abstractAmine-based absorbents play a central role in CO2 sequestration and utilization. Amines react selectively with CO2, but a drawback is the unproductive weight of solvent or support in the absorbent. Efforts have focused on metal organic frameworks (MOFs) reaching extremely high CO2 capacity, but limited selectivity to N2 and CH4, and decreased uptake at higher temperatures. A desirable system would have selectivity (cf. amine) and high capacity (cf. MOF), but also increased adsorption at higher temperatures. Here, we demonstrate a proof-of-concept where polyethyleneimine (PEI) is converted to a high capacity and highly selective CO2 absorbent using buckminsterfullerene (C60) as a cross-linker. PEI-C60 (CO2 absorption of 0.14 g/g at 0.1 bar/90°C) is compared to one of the best MOFs, Mg-MOF-74 (0.06 g/g at 0.1 bar/90°C), and does not absorb any measurable amount of CH4 at 50 bar. Thus, PEI-C60 can perform better than MOFs in the sweetening of natural gas.en_US
dc.identifier.citationAndreoli, Enrico, Dillon, Eoghan P., Cullum, Laurie, et al.. "Cross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbents." <i>Scientific Reports,</i> 4, (2014) Nature Publishing Group: http://dx.doi.org/10.1038/srep07304.
dc.identifier.doihttp://dx.doi.org/10.1038/srep07304en_US
dc.identifier.urihttps://hdl.handle.net/1911/78735
dc.language.isoengen_US
dc.publisherNature Publishing Group
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.subject.keywordcarbon nanotubes and fullerenesen_US
dc.subject.keywordpollution remediationen_US
dc.titleCross-Linking Amine-Rich Compounds into High Performing Selective CO2 Absorbentsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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