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나노물질및화학반응연구단
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Catalytic boosting on AuCu bimetallic nanoparticles by oxygen-induced atomic restructuring

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dc.contributor.authorTaek-Seung Kim-
dc.contributor.authorChoi, Hyuk-
dc.contributor.authorDaeho Kim-
dc.contributor.authorHee Chan Song-
dc.contributor.authorOh, Yusik-
dc.contributor.authorJeong, Beomgyun-
dc.contributor.authorLee, Jouhahn-
dc.contributor.authorKim, Ki-Jeong-
dc.contributor.authorJae Won Shin-
dc.contributor.authorByon, Hye Ryung-
dc.contributor.authorRyoo, Ryong-
dc.contributor.authorKim, Hyun You-
dc.contributor.authorJeong Young Park-
dc.date.accessioned2023-05-11T22:00:18Z-
dc.date.available2023-05-11T22:00:18Z-
dc.date.created2023-04-28-
dc.date.issued2023-08-
dc.identifier.issn0926-3373-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/13332-
dc.description.abstractUnderstanding the structure-activity relationship over silica-supported Au-based bimetallic nanocatalysts in CO oxidation is essential in elucidating active sites and catalytic mechanisms. Here, we uncover that structure-activity relationship over a silica-supported 10 nm sized AuCu bimetallic model nanocatalyst for CO oxidation. Oxygen–induced atomic restructuring of AuCu nanocrystals is comprehensively investigated using combined operando spectroscopic and microscopic techniques, including near-ambient-pressure X-ray photoelectron spectroscopy, diffuse reflectance infrared Fourier-transform spectroscopy, and environmental transmission electron microscopy. We show that the formation of CuOx/Au heterostructure gives rise to the enhancement of catalytic activity for CO oxidation. The formation of the reactive heterostructure on catalysis was rationalized by density functional theory calculation. Our results indicate that intermediate heterostructure with a metal-oxide interface leads to strong electronic coupling between catalyst and support (i.e., electronic metal-support interaction effect). © 2023 Elsevier B.V.-
dc.language영어-
dc.publisherElsevier BV-
dc.titleCatalytic boosting on AuCu bimetallic nanoparticles by oxygen-induced atomic restructuring-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid001093403600001-
dc.identifier.scopusid2-s2.0-85151538356-
dc.identifier.rimsid80629-
dc.contributor.affiliatedAuthorTaek-Seung Kim-
dc.contributor.affiliatedAuthorDaeho Kim-
dc.contributor.affiliatedAuthorHee Chan Song-
dc.contributor.affiliatedAuthorJae Won Shin-
dc.contributor.affiliatedAuthorJeong Young Park-
dc.identifier.doi10.1016/j.apcatb.2023.122704-
dc.identifier.bibliographicCitationApplied Catalysis B: Environmental, v.331-
dc.relation.isPartOfApplied Catalysis B: Environmental-
dc.citation.titleApplied Catalysis B: Environmental-
dc.citation.volume331-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaChemistry-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryEngineering, Environmental-
dc.relation.journalWebOfScienceCategoryEngineering, Chemical-
dc.subject.keywordPlusPREFERENTIAL CO OXIDATION-
dc.subject.keywordPlusSUPPORT INTERACTIONS-
dc.subject.keywordPlusSURFACE SEGREGATION-
dc.subject.keywordPlusALLOY NANOPARTICLES-
dc.subject.keywordPlusIN-SITU-
dc.subject.keywordPlusOXIDE-
dc.subject.keywordPlusNANOCLUSTERS-
dc.subject.keywordPlusINTERFACE-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusKINETICS-
dc.subject.keywordAuthorAtomic restructuring-
dc.subject.keywordAuthorAuCu nanocrystal-
dc.subject.keywordAuthorCO oxidation-
dc.subject.keywordAuthorElectronic metal-support interaction-
dc.subject.keywordAuthorOperando micro/spectroscopy-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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