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Chemical Environment Control and Enhanced Catalytic Performance of Platinum Nanoparticles Embedded in Nanocrystalline Metal-Organic Frameworks

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dc.contributor.authorChoi, Kyung Min-
dc.contributor.authorNa, Kyungsu-
dc.contributor.authorSomorjai, Gabor A.-
dc.contributor.authorYaghi, Omar M.-
dc.date.accessioned2022-04-19T09:51:01Z-
dc.date.available2022-04-19T09:51:01Z-
dc.date.issued2015-06-
dc.identifier.issn0002-7863-
dc.identifier.issn1520-5126-
dc.identifier.urihttps://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/147160-
dc.description.abstractChemical environment control of the metal nanoparticles (NPs) embedded in nanocrystalline metal-organic frameworks (nMOFs) is useful in controlling the activity and selectivity of catalytic reactions. In this report, organic linkers with two functional groups, sulfonic acid (-SO3H, S) and ammonium (-NH3(+), N), are chosen as strong and weak acidic functionalities, respectively, and then incorporated into a MOF [Zr6O4(OH)(4)(BDC)(6) (BDC = 1,4-benzenedicarboxylate), termed UiO-66] separately or together in the presence of 2.5 nm Pt NPs to build a series of Pt NPs-embedded in UiO-66 (Pt subset of nUiO-66). We find that these chemical functionalities play a critical role in product selectivity and activity in the gas-phase conversion of methylcyclopentane (MCP) to acyclic isomer, olefins, cyclohexane, and benzene. Pt subset of nUiO-66-S gives the highest selectivity to C-6-cyclic products (62.4% and 28.6% for cyclohexane and benzene, respectively) without acyclic isomers products. Moreover, its catalytic activity was doubled relative to the nonfunctionalized Pt subset of nUiO-66. In contrast, Pt subset of nUiO-66-N decreases selectivity for C-6-cyclic products to <50% while increases the acyclic isomer selectivity to 38.6%. Interestingly, the Pt subset of nUiO-66-SN containing both functional groups gave different-
dc.format.extent7-
dc.language영어-
dc.language.isoENG-
dc.publisherAMER CHEMICAL SOC-
dc.titleChemical Environment Control and Enhanced Catalytic Performance of Platinum Nanoparticles Embedded in Nanocrystalline Metal-Organic Frameworks-
dc.typeArticle-
dc.publisher.location미국-
dc.identifier.doi10.1021/jacs.5b03540-
dc.identifier.scopusid2-s2.0-84934983341-
dc.identifier.wosid000357062000049-
dc.identifier.bibliographicCitationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.137, no.24, pp 7810 - 7816-
dc.citation.titleJOURNAL OF THE AMERICAN CHEMICAL SOCIETY-
dc.citation.volume137-
dc.citation.number24-
dc.citation.startPage7810-
dc.citation.endPage7816-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClasssci-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.urlhttps://pubs.acs.org/doi/10.1021/jacs.5b03540-
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