Capture of Carbon Dioxide from Air and Flue Gas in the Alkylamine-Appended Metal-Organic Framework mmen-Mg-2(dobpdc)
DC Field | Value | Language |
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dc.contributor.author | McDonald, Thomas M. | - |
dc.contributor.author | Lee, Woo Ram | - |
dc.contributor.author | Mason, Jarad A. | - |
dc.contributor.author | Wiers, Brian M. | - |
dc.contributor.author | Hong, Chang Seop | - |
dc.contributor.author | Long, Jeffrey R. | - |
dc.date.accessioned | 2021-09-06T20:48:27Z | - |
dc.date.available | 2021-09-06T20:48:27Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-04-25 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/108654 | - |
dc.description.abstract | Two new metal organic frameworks, M-2(dobpdc) (M = Zn (1), Mg (2); dobpdc(4-) = 4,4'-dioxido-3,3'-biphenyldicarboxylate), adopting an expanded MOF-74 structure type, were synthesized via solvothermal and microwave methods. Coordinatively unsaturated Mg2+ cations lining the 18.4-angstrom-diameter channels of 2 were functionalized with N,N'-dimethylethylenediamine (mmen) to afford Mg-2(dobpdc)-(mmen)(1.6)(H2O)(0.4) (mmen-Mg-2(dobpdc)). This compound displays an exceptional capacity for CO2 adsorption at low pressures, taking up 2.0 mmol/g (8.1 wt %) at 0.39 mbar and 25 degrees C, conditions relevant to removal of CO2 from air, and 3.14 mmol/g (12.1 wt %) at 0.15 bar and 40 degrees C, conditions relevant to CO2 capture from flue gas. Dynamic gas adsorption/desorption cycling experiments demonstrate that mmen-Mg-2(dobpdc) can be regenerated upon repeated exposures to simulated air and flue gas mixtures, with cycling capacities of 1.05 mmol/g (4.4 wt %) after 1 h of exposure to flowing 390 ppm CO2 in simulated air at 25(degrees)C and 2.52 mmol/g (9.9 wt %) after 15 min of exposure to flowing 15% CO2 in N-2 at 40 degrees C. The purity of the CO2 removed from dry air and flue gas in these processes was estimated to be 96% and 98%, respectively. As a flue gas adsorbent, the regeneration energy was estimated through differential scanning calorimetry experiments to be 2.34 MJ/kg CO2 adsorbed. Overall, the performance characteristics of mmen-Mg-2(dobpdc) indicate it to be an exceptional new adsorbent for CO2 capture, comparing favorably with both amine-grafted silicas and aqueous amine solutions. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | CO2 CAPTURE | - |
dc.subject | COORDINATION POLYMER | - |
dc.subject | MESOPOROUS SILICA | - |
dc.subject | H-2 ADSORPTION | - |
dc.subject | REMOVAL | - |
dc.subject | HYDROGEN | - |
dc.subject | BINDING | - |
dc.subject | SITES | - |
dc.subject | SEPARATION | - |
dc.subject | ADSORBENT | - |
dc.title | Capture of Carbon Dioxide from Air and Flue Gas in the Alkylamine-Appended Metal-Organic Framework mmen-Mg-2(dobpdc) | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hong, Chang Seop | - |
dc.identifier.doi | 10.1021/ja300034j | - |
dc.identifier.scopusid | 2-s2.0-84860337158 | - |
dc.identifier.wosid | 000303139800034 | - |
dc.identifier.bibliographicCitation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.134, no.16, pp.7056 - 7065 | - |
dc.relation.isPartOf | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.title | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.citation.volume | 134 | - |
dc.citation.number | 16 | - |
dc.citation.startPage | 7056 | - |
dc.citation.endPage | 7065 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.subject.keywordPlus | CO2 CAPTURE | - |
dc.subject.keywordPlus | COORDINATION POLYMER | - |
dc.subject.keywordPlus | MESOPOROUS SILICA | - |
dc.subject.keywordPlus | H-2 ADSORPTION | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | BINDING | - |
dc.subject.keywordPlus | SITES | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordPlus | ADSORBENT | - |
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