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Jang, Ji-Hyun
Nano Crystal Lab (NCL)
Research Interests
  • Graphene, photoelectrochemical (PEC) H2 generation, ORR/OER, SERS,3D-Nanostructures, supercapacitors, thermoelectric materials

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Three-Dimensional Graphene Nano-Networks with High Quality and Mass Production Capability via Precursor-Assisted Chemical Vapor Deposition

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dc.contributor.author Yoon, Jong-Chul ko
dc.contributor.author Lee, Jung-Soo ko
dc.contributor.author Kim, Sun-I ko
dc.contributor.author Kim, Kwang-Hyun ko
dc.contributor.author Jang, Ji-Hyun ko
dc.date.available 2014-04-09T08:55:28Z -
dc.date.created 2013-07-05 ko
dc.date.issued 2013-05 -
dc.identifier.citation SCIENTIFIC REPORTS, v.3, no., pp.1 - 8 ko
dc.identifier.issn 2045-2322 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/2810 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84877742960 ko
dc.description.abstract We report a novel approach to synthesize chemical vapor deposition-grown three-dimensional graphene nano-networks (3D-GNs) that can be mass produced with large-area coverage. Annealing of a PVA/iron precursor under a hydrogen environment, infiltrated into 3D-assembled-colloidal silicas reduces iron ions and generates few-layer graphene by precipitation of carbon on the iron surface. The 3D-GN can be grown on any electronic device-compatible substrate, such as Al2O3, Si, GaN, or Quartz. The conductivity and surface area of a 3D-GN are 52 S/cm and 1,025 m(2)/g, respectively, which are much better than the previously reported values. Furthermore, electrochemical double-layer capacitors based on the 3D-GN have superior supercapacitor performance with a specific capacitance of 245 F/g and 96.5% retention after 6,000 cycles due to the outstanding conductivity and large surface area. The excellent performance of the 3D-GN as an electrode for supercapacitors suggests the great potential of interconnected graphene networks in nano-electronic devices and energy-related materials. ko
dc.description.statementofresponsibility open -
dc.language ENG ko
dc.publisher NATURE PUBLISHING GROUP ko
dc.subject FEW-LAYER GRAPHENE ko
dc.subject LARGE-AREA ko
dc.subject ACTIVATED CARBONS ko
dc.subject FILMS ko
dc.subject SUPERCAPACITORS ko
dc.subject TRANSPARENT ko
dc.subject XPS ko
dc.subject ULTRACAPACITORS ko
dc.subject SURFACE ko
dc.title Three-Dimensional Graphene Nano-Networks with High Quality and Mass Production Capability via Precursor-Assisted Chemical Vapor Deposition ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84877742960 ko
dc.identifier.wosid 000318471000002 ko
dc.type.rims ART ko
dc.description.wostc 15 *
dc.description.scopustc 4 *
dc.date.tcdate 2015-02-28 *
dc.date.scptcdate 2014-08-19 *
dc.identifier.doi 10.1038/srep01788 ko
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