Unexpected Penetration of CO Molecule into Zeolitic Micropores Almost Plugged by CuCl via π-Complexation of CO-CuCl
DC Field | Value | Language |
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dc.contributor.author | Lee, Chan Hyun | - |
dc.contributor.author | Kim, Kwangsoo | - |
dc.contributor.author | Kim, Jisoo | - |
dc.contributor.author | Cho, Kanghee | - |
dc.contributor.author | Han, Sang-Sup | - |
dc.contributor.author | Kim, Hyun Wook | - |
dc.contributor.author | Lee, Ki Bong | - |
dc.contributor.author | Kim, Byung-Hyun | - |
dc.contributor.author | Park, Jong Hyeok | - |
dc.contributor.author | Kim, Kyoungsoo | - |
dc.contributor.author | Park, Jong-Ho | - |
dc.date.accessioned | 2024-01-22T17:03:13Z | - |
dc.date.available | 2024-01-22T17:03:13Z | - |
dc.date.issued | 2023-05 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.issn | 1944-8252 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/117966 | - |
dc.description.abstract | Carbon monoxide (CO) is a key reactant in several Fischer-Tropsch processes, including those used in light olefin and methanol syntheses. However, it is highly toxic and causes serious poisoning of noble metal catalysts. Thus, a solid adsorbent that can selectively capture CO, especially at low concentrations, is required. In this study, zeolite Y-based adsorbents in which Cu-(I) ions occupy the supercage cation sites (CuCl/Y) are prepared via solid-state ion exchange. Volumetric adsorption measurements reveal that the Cu-(I) ions significantly enhance CO adsorption in the low-pressure range by p-complexation. Furthermore, unexpected molecular sieving behavior, with extremely high CO/CO2 selectivity, is observed when excess CuCl homogeneously covers the zeolite pore structures. Thus, although CO has a larger kinetic diameter, it can penetrate the zeolite supercage while smaller molecules (i.e., Ar and CO2) cannot. Density functional theory calculations reveal that CO molecules can remain adsorbed in pseudoblocked pores by CuCl, thanks to the strong interaction of C 2p and Cu 3d states, resulting in the high CO/CO2 selectivity. One of the prepared adsorbents, CuCl/Y with 50 wt % CuCl, is capable of selectively capturing 3.04 mmol g(-1) of CO with a CO/CO2 selectivity of ˃3370. | - |
dc.format.extent | 11 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | American Chemical Society | - |
dc.title | Unexpected Penetration of CO Molecule into Zeolitic Micropores Almost Plugged by CuCl via π-Complexation of CO-CuCl | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1021/acsami.3c04849 | - |
dc.identifier.scopusid | 2-s2.0-85162818286 | - |
dc.identifier.wosid | 001004622500001 | - |
dc.identifier.bibliographicCitation | ACS Applied Materials & Interfaces, v.15, no.22, pp 27411 - 27421 | - |
dc.citation.title | ACS Applied Materials & Interfaces | - |
dc.citation.volume | 15 | - |
dc.citation.number | 22 | - |
dc.citation.startPage | 27411 | - |
dc.citation.endPage | 27421 | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | TOTAL-ENERGY CALCULATIONS | - |
dc.subject.keywordPlus | METAL-ORGANIC FRAMEWORKS | - |
dc.subject.keywordPlus | GAS SHIFT REACTION | - |
dc.subject.keywordPlus | SELECTIVE ADSORPTION | - |
dc.subject.keywordPlus | HYDROGEN-PRODUCTION | - |
dc.subject.keywordPlus | COPPER(I) CHLORIDE | - |
dc.subject.keywordPlus | CARBON-MONOXIDE | - |
dc.subject.keywordPlus | ZSM-5 ZEOLITE | - |
dc.subject.keywordPlus | ADSORBENT | - |
dc.subject.keywordPlus | SEPARATION | - |
dc.subject.keywordAuthor | adsorbent | - |
dc.subject.keywordAuthor | density functional theory | - |
dc.subject.keywordAuthor | kinetic diameter | - |
dc.subject.keywordAuthor | Molecular sieving | - |
dc.subject.keywordAuthor | π-complexation | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.3c04849 | - |
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