DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Sunggyu | ko |
dc.contributor.author | Kevlishvili, Ilia | ko |
dc.contributor.author | Kulik, Heather J. | ko |
dc.contributor.author | Kim, Hee-Tak | ko |
dc.contributor.author | Chung, Yongchul G. | ko |
dc.contributor.author | Koh, Dong-Yeun | ko |
dc.date.accessioned | 2022-12-05T03:00:45Z | - |
dc.date.available | 2022-12-05T03:00:45Z | - |
dc.date.created | 2022-12-05 | - |
dc.date.created | 2022-12-05 | - |
dc.date.issued | 2022-11 | - |
dc.identifier.citation | JOURNAL OF MATERIALS CHEMISTRY A, v.10, no.46, pp.24802 - 24812 | - |
dc.identifier.issn | 2050-7488 | - |
dc.identifier.uri | http://hdl.handle.net/10203/301623 | - |
dc.description.abstract | Highly volatile and toxic bromine (Br-2) molecules can be utilized safely in various chemical processes when coupled with efficient separation systems. Herein, we present two different N-containing porous organic cages (POCs), covalent cage 3-R (CC3-R) and formaldehyde tied-reduced covalent cage 3 (FT-RCC3), for vapor Br-2 capture under ambient conditions. They show outstanding sorption capacities (11.02 mmol g(-1) and 11.64 mmol g(-1), respectively) compared with previously reported adsorbents. Reversibility of the Br-2 sorption process has been elucidated experimentally and computationally by identifying bromine species adsorbed at POCs and calculating their binding energies. The strong charge-transfer interactions between adsorbed Br-2 and abundant N atomic sites of the host cages led to the dominant formation of polybromide species (Br-3(-) and Br-5(-)). Further host-guest interaction between POCs and polybromides determined the reversibility of the Br-2 sorption process-showing partially reversible (>70% recovery) behavior for CC3-R and irreversible (<10% recovery) behavior for FT-RCC3, both of which were affected by the chemical and structural nature of different POCs. DFT calculations further indicate that the formation of carbocationic species (Br-3(-) and Br-5(-)) and HBr is energetically favorable within the cage, which is in good agreement with the experimental results. This work demonstrates that strong host-guest interactions are essential for highly efficient Br-2 capture and storage performance. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Highly efficient bromine capture and storage using N-containing porous organic cages | - |
dc.type | Article | - |
dc.identifier.wosid | 000885646700001 | - |
dc.identifier.scopusid | 2-s2.0-85142520376 | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 46 | - |
dc.citation.beginningpage | 24802 | - |
dc.citation.endingpage | 24812 | - |
dc.citation.publicationname | JOURNAL OF MATERIALS CHEMISTRY A | - |
dc.identifier.doi | 10.1039/d2ta05420e | - |
dc.contributor.localauthor | Kim, Hee-Tak | - |
dc.contributor.localauthor | Koh, Dong-Yeun | - |
dc.contributor.nonIdAuthor | Kevlishvili, Ilia | - |
dc.contributor.nonIdAuthor | Kulik, Heather J. | - |
dc.contributor.nonIdAuthor | Chung, Yongchul G. | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | SPECTRA | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | FRAMEWORK | - |
dc.subject.keywordPlus | MIXTURES | - |
dc.subject.keywordPlus | BR-2 | - |
dc.subject.keywordPlus | XPS | - |
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