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dc.contributor.authorVoskian, Sahag
dc.contributor.authorHatton, Trevor Alan
dc.date.accessioned2020-02-28T18:36:05Z
dc.date.available2020-02-28T18:36:05Z
dc.date.issued2019-10
dc.date.submitted2019-07
dc.identifier.issn1754-5692
dc.identifier.issn1754-5706
dc.identifier.urihttps://hdl.handle.net/1721.1/123890
dc.description.abstractCarbon capture is one of the foremost methods for curtailing greenhouse gas emissions. Incumbent technologies are inherently inefficient due to thermal energy losses, large footprint, or degradation of sorbent material. We report a solid-state faradaic electro-swing reactive adsorption system comprising an electrochemical cell that exploits the reductive addition of CO2 to quinones for carbon capture. The reported device is compact and flexible, obviates the need for ancillary equipment, and eliminates the parasitic energy losses by using electrochemically activated redox carriers. An electrochemical cell with a polyanthraquinone–carbon nanotube composite negative electrode captures CO2 upon charging via the carboxylation of reduced quinones, and releases CO2 upon discharge. The cell architecture maximizes the surface area exposed to gas, allowing for ease of stacking of the cells in a parallel passage contactor bed. We demonstrate the capture of CO2 both in a sealed chamber and in an adsorption bed from inlet streams of CO2 concentrations as low as 0.6% (6000 ppm) and up to 10%, at a constant CO2 capacity with a faradaic efficiency of >90%, and a work of 40–90 kJ per mole of CO2 captured, with great durability of electrochemical cells showing <30% loss of capacity after 7000 cylces.en_US
dc.language.isoen
dc.publisherRoyal Society of Chemistry (RSC)en_US
dc.relation.isversionofhttp://dx.doi.org/10.1039/c9ee02412cen_US
dc.rightsCreative Commons Attribution Noncommercial 3.0 unported licenseen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/3.0/en_US
dc.sourceRoyal Society of Chemistry (RSC)en_US
dc.titleFaradaic electro-swing reactive adsorption for CO2 captureen_US
dc.typeArticleen_US
dc.identifier.citationVoskian, Sahag and T. Alan Hatton. "Faradaic electro-swing reactive adsorption for CO2 capture." Energy and Environmental Science 12 (2019): 3530-47 ©2019 Author(s)en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Chemical Engineeringen_US
dc.relation.journalEnergy and Environmental Scienceen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2020-02-28T13:40:04Z
dspace.date.submission2020-02-28T13:40:15Z
mit.journal.volume12en_US
mit.licensePUBLISHER_CC


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