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Realizing battery-like energy density with asymmetric supercapacitors achieved by using highly conductive three-dimensional graphene current collectors

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dc.contributor.authorJongha Hwang-
dc.contributor.authorSun-I Kim-
dc.contributor.authorJong-Chul Yoon-
dc.contributor.authorSeon-Ji Ha-
dc.contributor.authorJi-Hyun Jang-
dc.date.available2017-10-19T02:28:41Z-
dc.date.created2017-08-29-
dc.date.issued2017-07-
dc.identifier.issn2050-7488-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/3881-
dc.description.abstractWe report a three-dimensional graphene network decorated with nickel nanoparticles as a current collector to achieve outstanding performance in Ni(OH)(2)-based supercapacitors with excellent energy density. A cost-efficient and single-step fabrication method creates nickel-particle decorated three-dimensional graphene networks (Ni-GNs) with an excellent electrical conductivity of 107 S m(-1) and a surface area of 16.4 m(2) g(-1) that are superior to those of carbon alternatives and commercial 3D-Ni foam, respectively. The supercapacitor in which Ni(OH)(2) active materials are deposited on Ni-GNs exhibited an outstanding capacitance value of 3179 F g(-1) at 10 A g(-1) in a three-electrode system and 90% of capacitance retention after 10 000 cycles. Furthermore, it showed an outstanding energy density of 197.5 W h kg(-1) at a power density of 815.5 W kg(-1) when tested in a two-electrode system. To the best of our knowledge, our device realized the world record value of energy density with a high rate capability and good cycle stability among Ni(OH) 2-based supercapacitors. The excellent electrical properties of easily synthesized Ni-GNs as the ideal current collector clearly suggest a straightforward way to achieve great performance supercapacitors with both high energy density and power density. This journal is © The Royal Society of Chemistry 2017-
dc.description.uri1-
dc.language영어-
dc.publisherROYAL SOC CHEMISTRY-
dc.titleRealizing battery-like energy density with asymmetric supercapacitors achieved by using highly conductive three-dimensional graphene current collectors-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000404618200008-
dc.identifier.scopusid2-s2.0-85021978800-
dc.identifier.rimsid59990-
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorJong-Chul Yoon-
dc.contributor.affiliatedAuthorJi-Hyun Jang-
dc.identifier.doi10.1039/c7ta03483k-
dc.identifier.bibliographicCitationJOURNAL OF MATERIALS CHEMISTRY A, v.5, no.26, pp.13347 - 13356-
dc.citation.titleJOURNAL OF MATERIALS CHEMISTRY A-
dc.citation.volume5-
dc.citation.number26-
dc.citation.startPage13347-
dc.citation.endPage13356-
dc.date.scptcdate2018-10-01-
dc.description.wostc6-
dc.description.scptc8-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusCHEMICAL-VAPOR-DEPOSITION-
dc.subject.keywordPlusLITHIUM-ION BATTERIES-
dc.subject.keywordPlusELECTROCHEMICAL SUPERCAPACITORS-
dc.subject.keywordPlusELECTRODE MATERIALS-
dc.subject.keywordPlusDOPED GRAPHENE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusSTORAGE-
dc.subject.keywordPlusCARBON-
dc.subject.keywordPlusOXIDE-
dc.subject.keywordPlusFOAM-
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > 1. Journal Papers (저널논문)
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