Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김영미 | * |
dc.date.accessioned | 2018-12-14T16:31:06Z | - |
dc.date.available | 2018-12-14T16:31:06Z | - |
dc.date.issued | 2018 | * |
dc.identifier.issn | 1477-9226 | * |
dc.identifier.other | OAK-22491 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/247811 | - |
dc.description.abstract | Lewis basic heteroatoms orderly located inside the well-defined channels of metal-organic frameworks (MOFs) are potentially ideal active sites for selective gas sorption and catalysis. To develop functional MOFs with Lewis basic sites inside channels, a new C2h-symmetric dicarboxylate-based bridging ligand, 3,3′-(pyrazine-2,5-diyl)dibenzoic acid (3,3′-PDBA), was prepared by a Suzuki coupling reaction. Subsequently, two new Zn-MOFs containing the C2h-symmetric 3,3′-PDBA bridging ligand and two different bis(pyridyl)-based pillars, 1,2-bis(4-pyridyl)ethane (bpa) or 1,2-bis(4-pyridyl)ethylene (bpe), were prepared through a thermal reaction in N,N-dimethylformamide (DMF). The resulting two Zn-MOFs of the general formula of three-dimensional (3D) [Zn2(μ4-3,3′-PDBA)2(μ2-bpa)]3·(DMF)5(H2O)13 (1) or 3D-like 2D [Zn2(μ4-3,3′-PDBA)2(μ2-bpe)]·(H2O) (2) displayed primitive cubic pcu net and 2D sql net, respectively. Both Zn-MOFs 1 and 2 contain uncoordinated Lewis basic pyrazinyl nitrogen atoms in the frameworks. The solvent-free 1 with flexible bpa linkers only showed a potential porosity of 15.9% by PLATON analysis. Zn-MOF 1 with openly accessible Lewis basic sites exhibited selective sorption of CO2 over N2, H2, and CH4 at low temperature. The adsorption and desorption isotherms for CO2 sorption at 196 K showed phenomenal hysteretic behaviour indicative of a breathing process through an adsorbate-discriminatory gate-opening process toward CO2 at a low gas pressure. © 2018 The Royal Society of Chemistry. | * |
dc.description.sponsorship | Kwangwoon University | * |
dc.language | English | * |
dc.publisher | Royal Society of Chemistry | * |
dc.title | Selective carbon dioxide sorption by a new breathing three-dimensional Zn-MOF with Lewis basic nitrogen-rich channels | * |
dc.type | Article | * |
dc.relation.issue | 14 | * |
dc.relation.volume | 47 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 4820 | * |
dc.relation.lastpage | 4826 | * |
dc.relation.journaltitle | Dalton Transactions | * |
dc.identifier.doi | 10.1039/c7dt04134a | * |
dc.identifier.wosid | WOS:000429743700007 | * |
dc.identifier.scopusid | 2-s2.0-85044965236 | * |
dc.author.google | Kim H.-C. | * |
dc.author.google | Huh S. | * |
dc.author.google | Lee D.N. | * |
dc.author.google | Kim Y. | * |
dc.contributor.scopusid | 김영미(57207443602) | * |
dc.date.modifydate | 20240301081003 | * |