DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Seongseop | ko |
dc.contributor.author | Ju, Mieun | ko |
dc.contributor.author | Lee, Jisung | ko |
dc.contributor.author | Hwang, Jongkook | ko |
dc.contributor.author | Lee, Jinwoo | ko |
dc.date.accessioned | 2020-06-23T09:20:05Z | - |
dc.date.available | 2020-06-23T09:20:05Z | - |
dc.date.created | 2020-06-16 | - |
dc.date.created | 2020-06-16 | - |
dc.date.created | 2020-06-16 | - |
dc.date.created | 2020-06-16 | - |
dc.date.issued | 2020-05 | - |
dc.identifier.citation | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.142, no.20, pp.9250 - 9257 | - |
dc.identifier.issn | 0002-7863 | - |
dc.identifier.uri | http://hdl.handle.net/10203/274802 | - |
dc.description.abstract | Two-dimensional (2D) carbon nanosheets with micro- and/or mesopores have attracted great attention due to unique physical and chemical properties, but well-defined nanoporous carbon nanosheets with tunable thickness and pore size have been rarely realized. Here, we develop a polymer-polymer interfacial self-assembly strategy to achieve hierarchically porous carbon nanosheets (HNCNSs) by integrating the migration behaviors of immiscible ternary polymers with block copolymer (BCP)-directed self-assembly. The balanced interfacial compatibility of BCP allows the migration of a BCP-rich phase to the interface between two immiscible homopolymer major phases (i.e., homopoly(methyl methacrylate) and homopolystyrene), where the BCP-rich phase spreads thinly to a thickness of a few nanometers to decrease the interfacial tension. BCP-directed coassembly with organic-inorganic precursors constructs an ordered mesostructure. Carbonization and chemical etching yield ultrathin HNCNSs with hierarchical micropores and mesopores. This approach enables facile control over the thickness (5.6-75 nm) and mesopore size (25-46 nm). As an anode material in a potassium ion battery, HNCNSs show high specific capacity (178 mA h g(-1) at a current density of 1 A g(-1)) with excellent long-term stability (2000 cycles), by exploiting the advantages of the hierarchical pores and 2D nanosheet morphology (efficient ion/electron diffusion) and of the large interlayer spacing (stable ion insertion). | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Polymer Interfacial Self-Assembly Guided Two-Dimensional Engineering of Hierarchically Porous Carbon Nanosheets | - |
dc.type | Article | - |
dc.identifier.wosid | 000537415600023 | - |
dc.identifier.scopusid | 2-s2.0-85087847429 | - |
dc.type.rims | ART | - |
dc.citation.volume | 142 | - |
dc.citation.issue | 20 | - |
dc.citation.beginningpage | 9250 | - |
dc.citation.endingpage | 9257 | - |
dc.citation.publicationname | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | - |
dc.identifier.doi | 10.1021/jacs.0c00311 | - |
dc.contributor.localauthor | Lee, Jinwoo | - |
dc.contributor.nonIdAuthor | Kim, Seongseop | - |
dc.contributor.nonIdAuthor | Ju, Mieun | - |
dc.contributor.nonIdAuthor | Hwang, Jongkook | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | DIRECT ACCESS | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | BLENDS | - |
dc.subject.keywordPlus | ANODE | - |
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