Thermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO2 Capture

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dc.contributor.authorPark, Sunghyunko
dc.contributor.authorChoi, Keunsuko
dc.contributor.authorYu, Hyun Jungko
dc.contributor.authorWon, Young-Juneko
dc.contributor.authorKim, Chaehoonko
dc.contributor.authorChoi, Minkeeko
dc.contributor.authorCho, So-Hyeko
dc.contributor.authorLee, Jung-Hyunko
dc.contributor.authorLee, Seung Yongko
dc.contributor.authorLee, Jong Sukko
dc.date.accessioned2018-05-24T01:32:33Z-
dc.date.available2018-05-24T01:32:33Z-
dc.date.created2018-04-30-
dc.date.created2018-04-30-
dc.date.created2018-04-30-
dc.date.issued2018-04-
dc.identifier.citationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, v.57, no.13, pp.4632 - 4639-
dc.identifier.issn0888-5885-
dc.identifier.urihttp://hdl.handle.net/10203/242180-
dc.description.abstractTetraethylenepentamine (TEPA), consisting mainly of primary and secondary amines, exhibits a high CO2 sorption capacity; however, its poor thermal stability hampers process for CO2 capture. Here, a facile functionalization of practical utilization in the temperature swing adsorption TEPA with 1,2-epoxybutane (EB) substantially enhanced its thermal stability as well as the CO2 adsorption kinetics. Our careful analysis on the liquid-state C-13 NMR disclosed the amine state distribution of EB-functionalized TEPA (EB-TEPA). Although the increase in tertiary amine portion induced by EB-functionalization reduced CO2 sorption capacity, the 0.64EB-TEPA (i.e., TEPA functionalized with EB with a TEPA/EB molar ratio of 1:3)/SiO2 showed an excellent long-term stability over the 10 consecutive cycles of adsorption/desorption processes with a CO2 swing capacity of 2.0 mmol CO2 g(-1) under dry CO2/N-2 (15/85 mol/mol) feed conditions. Also, the first-principles calculation identified the configuration of modified TEPA molecules with XRD measurements, supporting an easy access of CO2 into amine moieties of our modified TEPA molecules.-
dc.languageEnglish-
dc.publisherAMER CHEMICAL SOC-
dc.titleThermal Stability Enhanced Tetraethylenepentamine/Silica Adsorbents for High Performance CO2 Capture-
dc.typeArticle-
dc.identifier.wosid000429508500016-
dc.identifier.scopusid2-s2.0-85045031816-
dc.type.rimsART-
dc.citation.volume57-
dc.citation.issue13-
dc.citation.beginningpage4632-
dc.citation.endingpage4639-
dc.citation.publicationnameINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH-
dc.identifier.doi10.1021/acs.iecr.7b04912-
dc.contributor.localauthorChoi, Minkee-
dc.contributor.nonIdAuthorPark, Sunghyun-
dc.contributor.nonIdAuthorChoi, Keunsu-
dc.contributor.nonIdAuthorYu, Hyun Jung-
dc.contributor.nonIdAuthorWon, Young-June-
dc.contributor.nonIdAuthorCho, So-Hye-
dc.contributor.nonIdAuthorLee, Jung-Hyun-
dc.contributor.nonIdAuthorLee, Seung Yong-
dc.contributor.nonIdAuthorLee, Jong Suk-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusTOTAL-ENERGY CALCULATIONS-
dc.subject.keywordPlusWAVE BASIS-SET-
dc.subject.keywordPlusMESOPOROUS SILICA-
dc.subject.keywordPlusCARBON-DIOXIDE-
dc.subject.keywordPlusGAS SEPARATIONS-
dc.subject.keywordPlusMCM-41 SORBENTS-
dc.subject.keywordPlusSOLID SORBENTS-
dc.subject.keywordPlusADSORPTION-
dc.subject.keywordPlusTEMPERATURE-
dc.subject.keywordPlusNANOCOMPOSITE-
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