Tailoring Multiple Porosities of Hierarchical ZSM-5 Zeolites by Carbon Dots for High-Performance Catalytic Transformation

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dc.contributor.authorZhao, Shufangko
dc.contributor.authorKim, Kyung Dukko
dc.contributor.authorWang, Lizhuoko
dc.contributor.authorRyoo, Ryongko
dc.contributor.authorHuang, Junko
dc.date.accessioned2021-03-04T06:10:06Z-
dc.date.available2021-03-04T06:10:06Z-
dc.date.created2020-12-14-
dc.date.issued2021-02-
dc.identifier.citationADVANCED MATERIALS INTERFACES, v.8, no.4, pp.2001846-
dc.identifier.issn2196-7350-
dc.identifier.urihttp://hdl.handle.net/10203/281193-
dc.description.abstractA simple and high-efficiency method is proposed to synthesize hierarchical ZSM-5 zeolites with micropore and multistage mesopores by adopting water-soluble carbon dots (CDots) with various size distributions, such as 1-stage size distribution of CDots-1 of around 23 nm, 2-stage size distribution of CDots-2 of 6 and 9 nm, 3-stage size distribution of CDots-3 of 5, 8, and 18 nm. The abundant -OH and -COOH groups on the surface of CDots provide high solubility in water. The characterization techniques confirmed that the dual-porous h-ZSM-5 (MIcro-mEsopores) and multi-porous h-ZSM-5 (MIcro-mEso-mEsopores), h-ZSM-5 (MIcro-mEso-mEso-mEsopores, M-IEEE) catalysts are obtained. Notably, the hierarchical ZSM-5(M-IEEE) catalyst with micropore of 0.55 nm, two small mesopores of 4.8 and 7.4 nm, and one large mesopore of 17.5 nm show excellent catalytic performance with the highest 1,3,5-triisopropylbenzene (TIPB) cracking conversion (97.3%) and high stability. Similarly, the h-ZSM-5(M-IEEE) shows the high ethanol to olefins conversion (100%). The improved catalytic activity can be attributed to the more efficient diffusion of reactants and products in the crystals with the help of multistage mesopores, improved anti-coking stability, combined with the effect of suitable acidity, and the increased accessibility of the acid sites.-
dc.languageEnglish-
dc.publisherWILEY-
dc.titleTailoring Multiple Porosities of Hierarchical ZSM-5 Zeolites by Carbon Dots for High-Performance Catalytic Transformation-
dc.typeArticle-
dc.identifier.wosid000592265900001-
dc.identifier.scopusid2-s2.0-85097199497-
dc.type.rimsART-
dc.citation.volume8-
dc.citation.issue4-
dc.citation.beginningpage2001846-
dc.citation.publicationnameADVANCED MATERIALS INTERFACES-
dc.identifier.doi10.1002/admi.202001846-
dc.contributor.localauthorRyoo, Ryong-
dc.contributor.nonIdAuthorZhao, Shufang-
dc.contributor.nonIdAuthorKim, Kyung Duk-
dc.contributor.nonIdAuthorWang, Lizhuo-
dc.contributor.nonIdAuthorHuang, Jun-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthoracidity-
dc.subject.keywordAuthorcarbon dots-
dc.subject.keywordAuthorethanol dehydration-
dc.subject.keywordAuthorhierarchical ZSM-5 zeolites-
dc.subject.keywordAuthor1,3,5-triisopropylbenzene cracking-
dc.subject.keywordPlusSTRUCTURED POROUS MATERIALS-
dc.subject.keywordPlusQUANTUM DOTS-
dc.subject.keywordPlusACID SITES-
dc.subject.keywordPlusBULKY HYDROCARBONS-
dc.subject.keywordPlusMESOPOROUS ZSM-5-
dc.subject.keywordPlusP-31 NMR-
dc.subject.keywordPlusCRACKING-
dc.subject.keywordPlusDEHYDRATION-
dc.subject.keywordPlusMFI-
dc.subject.keywordPlusETHANOL-
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