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dc.contributor.author김우재-
dc.date.accessioned2019-07-29T16:30:22Z-
dc.date.available2019-07-29T16:30:22Z-
dc.date.issued2018-
dc.identifier.issn0169-4332-
dc.identifier.issn1873-5584-
dc.identifier.otherOAK-25111-
dc.identifier.urihttps://dspace.ewha.ac.kr/handle/2015.oak/250234-
dc.description.abstractSingle-walled carbon nanotubes (SWCNTs) can be either metallic or semiconducting, making their separation critical for applications in nanoelectronics, biomedical materials, and solar cells. Herein, we investigate a novel solution-phase separation method based on click chemistry (azide-alkyne Huisgen cycloaddition) and determine its efficiency and scalability. In this method, metallic SWCNTs in metallic/semiconducting SWCNT mixtures are selectively functionalized with alkyne groups by being reacted with 4-propargyloxybenezenediazonium tetrafluoroborate. Subsequently, silica nanoparticles are functionalized with azide groups and reacted with alkyne-bearing metallic SWCNTs in the SWCNT mixture in the presence of a Cu catalyst. As a result, metallic SWCNTs are anchored on silica powder, whereas non-functionalized semiconducting SWCNTs remain in solution. Low-speed centrifugation effectively removes the silica powder with attached metallic SWCNTs, furnishing a solution of highly pure semiconducting SWCNTs, as confirmed by Raman and UV-vis/near-infrared absorption measurements. This novel separation scheme exhibits the advantage of simultaneously separating both metallic and semiconducting SWCNTs from their mixtures, being cost-effective and therefore applicable at an industrial scale. (C) 2017 Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectSWCNT separation-
dc.subjectsc-SWCNT-
dc.subjectm-SWCNT-
dc.subjectClick chemistry-
dc.subjectCopper catalyst-
dc.subject1,3 dipolar cycloaddition-
dc.titleLarge-scale separation of single-walled carbon nanotubes by electronic type using click chemistry-
dc.typeArticle-
dc.relation.volume429-
dc.relation.indexSCIE-
dc.relation.indexSCOPUS-
dc.relation.startpage278-
dc.relation.lastpage283-
dc.relation.journaltitleAPPLIED SURFACE SCIENCE-
dc.identifier.doi10.1016/j.apsusc.2017.06.002-
dc.identifier.wosidWOS:000415228700042-
dc.author.googleUm, Jo-Eun-
dc.author.googleSong, Sun Gu-
dc.author.googleYoo, Pil J.-
dc.author.googleSong, Changsik-
dc.author.googleKim, Woo-Jae-
dc.contributor.scopusid김우재(34770324900)-
dc.date.modifydate20210929141301-
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엘텍공과대학 > 화학신소재공학전공 > Journal papers
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