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다차원탄소재료연구단
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Anchoring effect of Ni2+ in stabilizing reduced metallic particles for growing single-walled carbon nanotubes

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dc.contributor.authorMaoshuai He-
dc.contributor.authorXiao Wang-
dc.contributor.authorLili Zhang-
dc.contributor.authorQianru Wu-
dc.contributor.authorXiaojie Song-
dc.contributor.authorAlexander I. Chernov-
dc.contributor.authorPavel V. Fedotov-
dc.contributor.authorElena D. Obraztsova-
dc.contributor.authorJani Sainio-
dc.contributor.authorHua Jiang-
dc.contributor.authorHongzhi Cui-
dc.contributor.authorFeng Ding-
dc.contributor.authorEsko Kauppinen-
dc.date.available2018-03-05T01:03:32Z-
dc.date.created2018-01-23-
dc.date.issued2018-03-
dc.identifier.issn0008-6223-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/4374-
dc.description.abstractThe suitability of the Ni-MgO catalyst as a catalyst in chiral-selective growth of single-walled carbon nanotubes (SWNTs) by chemical vapor deposition has been assessed. It reveals that catalyst calcination temperature plays an important role in affecting the catalyst performances. Using CO as the carbon precursor and a chemical vapor deposition reaction temperature of 600 degrees C, Ni-MgO pre-calcined at 600 degrees C demonstrates the best performances in catalyzing the growth of SWNTs with predominant (6, 5) species. Systematic characterizations on catalysts calcinated at different temperatures indicate that Ni2+ ions diffuse towards the interior of MgO matrix upon annealing. DFT-based calculations reveal that the binding energy between Ni2+ and adjacent Ni(0) is larger than that between Mg2+ and Ni (0), while Ni2+ situated deep inside MgO has weak interactions with surface Ni atoms. This work highlights the importance of subsurface Ni2+ in anchoring reduced surface Ni atom, which inhibits the aggregation of Ni particles and therefore, facilitates the growth of SWNTs with a narrow chirality distribution. (c) 2017 Elsevier Ltd. All rights reserved-
dc.description.uri1-
dc.language영어-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectSingle-walled carbon nanotube-
dc.subjectCatalyst-
dc.subjectChirality selective-
dc.subjectReduction temperature-
dc.subjectSolid solution-
dc.subjectAnchoring effect-
dc.titleAnchoring effect of Ni2+ in stabilizing reduced metallic particles for growing single-walled carbon nanotubes-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000418479900029-
dc.identifier.scopusid2-s2.0-85036461188-
dc.identifier.rimsid61941ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorMaoshuai He-
dc.contributor.affiliatedAuthorXiao Wang-
dc.contributor.affiliatedAuthorFeng Ding-
dc.identifier.doi10.1016/j.carbon.2017.11.093-
dc.identifier.bibliographicCitationCARBON, v.128, pp.249 - 256-
dc.citation.titleCARBON-
dc.citation.volume128-
dc.citation.startPage249-
dc.citation.endPage256-
dc.date.scptcdate2018-10-01-
dc.description.scptc2-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusSELECTIVE GROWTH-
dc.subject.keywordPlusCHIRALITY DISTRIBUTIONS-
dc.subject.keywordPlusBIMETALLIC CATALYST-
dc.subject.keywordPlusXPS SPECTRA-
dc.subject.keywordPlusCO-
dc.subject.keywordPlusSEPARATION-
dc.subject.keywordPlusMO-
dc.subject.keywordPlusNANOPARTICLES-
dc.subject.keywordPlusSPECTROSCOPY-
dc.subject.keywordPlusDIFFRACTION-
dc.subject.keywordAuthorSingle-walled carbon nanotube-
dc.subject.keywordAuthorCatalyst-
dc.subject.keywordAuthorChirality selective-
dc.subject.keywordAuthorReduction temperature-
dc.subject.keywordAuthorSolid solution-
dc.subject.keywordAuthorAnchoring effect-
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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