Three-dimensionally assembled Graphene/alpha-MnO2 nanowire hybrid hydrogels for high performance supercapacitors
DC Field | Value | Language |
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dc.contributor.author | Tuan Sang Tran | - |
dc.contributor.author | Tripathi, Kumud Malika | - |
dc.contributor.author | Kim, Bit Na | - |
dc.contributor.author | You, In-Kyu | - |
dc.contributor.author | Park, Byung Jun | - |
dc.contributor.author | Han, Young Hee | - |
dc.contributor.author | Kim, TaeYoung | - |
dc.date.available | 2020-02-27T16:41:36Z | - |
dc.date.created | 2020-02-06 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.issn | 0025-5408 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/5391 | - |
dc.description.abstract | We present a facile hydrothermal method to produce graphene-metal oxide composite that offer synergistic effect of three-dimensional (3D) graphene and electroactive alpha-MnO2 nanowires to improve high energy storage capability in supercapacitors. The graphene/alpha-MnO2 nanowire hydrogel is prepared via a simple hydrothermal route, in which graphene and alpha-MnO2 nanowires are self-assembled into 3D macroporous network structures. An asymmetric supercapacitor device is fabricated by using graphene/alpha-MnO2 nanowire hydrogel as positive electrode and 3D graphene hydrogel as negative electrode in an aqueous Na2SO4 electrolyte. The asymmetric cell can be cycled in the wide voltage range of 0-2 V and exhibit a gravimetric energy density of 38 Wh kg(-1) with a maximum power density of 258 kW kg(-1). In addition, it shows a good cycle stability with similar to 94% capacitance retention after 1000 cycles. The graphene/alpha-MnO2 nanowires hybrid hydrogels may have great potential in developing energy storage devices with high energy and power densities. (C) 2017 Elsevier Ltd. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | MATERIALS RESEARCH BULLETIN | - |
dc.subject | HIGH-ENERGY | - |
dc.subject | ELECTROCHEMICAL CAPACITORS | - |
dc.subject | GRAPHENE | - |
dc.subject | ELECTRODES | - |
dc.subject | LIGHTWEIGHT | - |
dc.subject | NETWORKS | - |
dc.subject | POWER | - |
dc.title | Three-dimensionally assembled Graphene/alpha-MnO2 nanowire hybrid hydrogels for high performance supercapacitors | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000413797100018 | - |
dc.identifier.doi | 10.1016/j.materresbull.2017.04.012 | - |
dc.identifier.bibliographicCitation | MATERIALS RESEARCH BULLETIN, v.96, pp.395 - 404 | - |
dc.identifier.scopusid | 2-s2.0-85018766566 | - |
dc.citation.endPage | 404 | - |
dc.citation.startPage | 395 | - |
dc.citation.title | MATERIALS RESEARCH BULLETIN | - |
dc.citation.volume | 96 | - |
dc.contributor.affiliatedAuthor | Tuan Sang Tran | - |
dc.contributor.affiliatedAuthor | Tripathi, Kumud Malika | - |
dc.contributor.affiliatedAuthor | Kim, TaeYoung | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | Graphene | - |
dc.subject.keywordAuthor | alpha-MnO2 nanowires | - |
dc.subject.keywordAuthor | Composites | - |
dc.subject.keywordAuthor | Supercapacitors | - |
dc.subject.keywordAuthor | Energy storage | - |
dc.subject.keywordPlus | HIGH-ENERGY | - |
dc.subject.keywordPlus | ELECTROCHEMICAL CAPACITORS | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | LIGHTWEIGHT | - |
dc.subject.keywordPlus | NETWORKS | - |
dc.subject.keywordPlus | POWER | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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