DSpace at KISTKIST Article2023

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dc.contributor.authorJang, Munjeong-
dc.contributor.authorChoi, Subin-
dc.contributor.authorKim, Yoondo-
dc.contributor.authorCha, Junyoung-
dc.contributor.authorKim, Ah-Reum-
dc.contributor.authorJeong, Hyangsoo-
dc.contributor.authorKim, Yongmin-
dc.contributor.authorChoi, Sun Hee-
dc.contributor.authorNam, Suk Woo-
dc.contributor.authorLim, Jongwoo-
dc.contributor.authorYoon, Chang Won-
dc.contributor.authorSohn, Hyuntae-
dc.date.accessioned2024-01-19T09:03:22Z-
dc.date.available2024-01-19T09:03:22Z-
dc.date.created2023-06-01-
dc.date.issued2023-08-
dc.identifier.issn0169-4332-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/113467-
dc.description.abstractA highly reducible CeO2 surface was prepared on a SiO2 support to investigate the effect of redox properties of CeO2 on the catalytic activity of Pt/CeO2-SiO2 for MCH dehydrogenation. Characterization of the Pt/CeO2-SiO2 catalyst revealed a significantly higher Pt dispersion than Pt/micro-sized CeO2 and Pt/SiO2. The well-dispersed Pt particles averaging 1.1 nm in size (Pt/CeO2-SiO2) were primarily attributed to the high surface concentration of oxygen vacancies, which provided abundant defect sites that stabilized the Pt particles from sintering. Hydrogen released from MCH dehydrogenation was approximately 5-6 times greater with high selectivity to-wards toluene products for Pt/CeO2-SiO2 compared to its counterparts. The excellent catalytic activity of Pt/ CeO2-SiO2 was attributed to the presence of rich oxygen vacancies on the CeO2 surface, which was significantly reduced under MCH dehydrogenation conditions, resulting in faster toluene desorption.-
dc.languageEnglish-
dc.publisherElsevier BV-
dc.titleEffect of CeO2 redox properties on the catalytic activity of Pt-CeOx over irreducible SiO2 support for methylcyclohexane (MCH) dehydrogenation-
dc.typeArticle-
dc.identifier.doi10.1016/j.apsusc.2023.157134-
dc.description.journalClass1-
dc.identifier.bibliographicCitationApplied Surface Science, v.627-
dc.citation.titleApplied Surface Science-
dc.citation.volume627-
dc.description.isOpenAccessY-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000984745900001-
dc.identifier.scopusid2-s2.0-85153118652-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryMaterials Science, Coatings & Films-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalWebOfScienceCategoryPhysics, Condensed Matter-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.type.docTypeArticle-
dc.subject.keywordPlusOXYGEN VACANCIES-
dc.subject.keywordPlusRAMAN-SPECTROSCOPY-
dc.subject.keywordPlusHYDROGEN-
dc.subject.keywordPlusCERIA-
dc.subject.keywordPlusCO-
dc.subject.keywordPlusIDENTIFICATION-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusOXIDATION-
dc.subject.keywordPlusEFFICIENT-
dc.subject.keywordAuthorLiquid organic hydrogen carriers (LOHC)-
dc.subject.keywordAuthorDehydrogenation-
dc.subject.keywordAuthorCeO2-dopedSiO2-
dc.subject.keywordAuthorCeria-
dc.subject.keywordAuthorMethylcyclohexane (MCH)-
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