Facile and fast microwave-assisted fabrication of activated and porous carbon cloth composites with graphene and MnO2 for flexible asymmetric supercapacitors

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dc.contributor.authorJeon, Hyeonyeolko
dc.contributor.authorJeong, Jae-Minko
dc.contributor.authorHong, Seok Bokko
dc.contributor.authorYang, MinHoko
dc.contributor.authorPark, Jeyoungko
dc.contributor.authorKim, Do Hyunko
dc.contributor.authorHwang, Sung Yeonko
dc.contributor.authorChoi, Bong Gillko
dc.date.accessioned2018-07-24T02:21:05Z-
dc.date.available2018-07-24T02:21:05Z-
dc.date.created2018-06-29-
dc.date.created2018-06-29-
dc.date.issued2018-08-
dc.identifier.citationELECTROCHIMICA ACTA, v.280, pp.9 - 16-
dc.identifier.issn0013-4686-
dc.identifier.urihttp://hdl.handle.net/10203/243992-
dc.description.abstractCurrent collectors and substrate materials are of pivotal importance for the design and preparation of electrodes and energy storage devices, because their surface areas, morphologies, ionic and electronic conductivities, and mechanical properties substantially influence electrochemical performances. Although carbon cloths (CCs) are widely considered the most promising current collectors for flexible energy storage devices, the majority of carbon-based textiles have poor capacitances due to their low surface areas and porosities, which reduce device performances. Here, we report a rapid and straightforward method for preparing CC-based electrode materials for high performance supercapacitors using microwaves. Microwave irradiation efficiently activates the surface pores of carbon fibers, and increases specific capacitance markedly as compared with pristine CC. In addition, surfaces of microwave-treated CCs (m-CCs) are coated with reduced graphene oxide (RGO) or MnO2, and the resulting electrode materials exhibit excellent electrochemical performances, such as, high specific capacitances, high rate capabilities, and long-term cycling stabilities. Flexible solid-state supercapacitor devices are fabricated using a RGO/m-CC as a negative electrode and a MnO2/m-CC as a positive electrode. The produced asymmetric supercapacitors show an excellent resilience to harsh electrochemical and mechanical conditions, and high energy and power densities. (C) 2018 Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectSOLID-STATE SUPERCAPACITOR-
dc.subjectLITHIUM-ION BATTERIES-
dc.subjectWEARABLE ENERGY-STORAGE-
dc.subjectFIBER SUPERCAPACITORS-
dc.subjectTHIN-FILM-
dc.subjectPERFORMANCE-
dc.subjectELECTRODES-
dc.subjectTEXTILES-
dc.subjectCAPABILITY-
dc.subjectNANOTUBES-
dc.titleFacile and fast microwave-assisted fabrication of activated and porous carbon cloth composites with graphene and MnO2 for flexible asymmetric supercapacitors-
dc.typeArticle-
dc.identifier.wosid000434691400002-
dc.identifier.scopusid2-s2.0-85047333346-
dc.type.rimsART-
dc.citation.volume280-
dc.citation.beginningpage9-
dc.citation.endingpage16-
dc.citation.publicationnameELECTROCHIMICA ACTA-
dc.identifier.doi10.1016/j.electacta.2018.05.108-
dc.contributor.localauthorKim, Do Hyun-
dc.contributor.nonIdAuthorJeon, Hyeonyeol-
dc.contributor.nonIdAuthorHong, Seok Bok-
dc.contributor.nonIdAuthorYang, MinHo-
dc.contributor.nonIdAuthorPark, Jeyoung-
dc.contributor.nonIdAuthorHwang, Sung Yeon-
dc.contributor.nonIdAuthorChoi, Bong Gill-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorSupercapacitor-
dc.subject.keywordAuthorCarbon cloth-
dc.subject.keywordAuthorActivation-
dc.subject.keywordAuthorHierarchical porous-
dc.subject.keywordAuthorMicrowave-
dc.subject.keywordPlusSOLID-STATE SUPERCAPACITOR-
dc.subject.keywordPlusLITHIUM-ION BATTERIES-
dc.subject.keywordPlusWEARABLE ENERGY-STORAGE-
dc.subject.keywordPlusFIBER SUPERCAPACITORS-
dc.subject.keywordPlusTHIN-FILM-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusELECTRODES-
dc.subject.keywordPlusTEXTILES-
dc.subject.keywordPlusCAPABILITY-
dc.subject.keywordPlusNANOTUBES-
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