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Three-dimensionally branched carbon nanowebs as air-cathode for redox-mediated Li-O2 batteries

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dc.contributor.authorHee-Dae Lim-
dc.contributor.authorYoung Soo Yun-
dc.contributor.authorYoungmin Ko-
dc.contributor.authorYoungjoon Bae-
dc.contributor.authorMin Yeong Song-
dc.contributor.authorHyeon Ji Yoon-
dc.contributor.authorKisuk Kang-
dc.contributor.authorHyoung-Joon Jin-
dc.date.available2018-01-10T04:36:17Z-
dc.date.created2017-04-24-
dc.date.issued2017-07-
dc.identifier.issn0008-6223-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/4245-
dc.description.abstractThe optimal design of air-electrodes is one of the important keys to achieve the high rechargeability of Li-O2 batteries, however, remains as a challenging issue to date. Herein, we propose an air-electrode architecture based on three-dimensionally open macroporous carbon nanowebs (3-DOM-CNWs), which can be easily scaled-up maintaining its hierarchical structure of nano/micrometer-scale pores. It is demonstrated that the open macroporous nanoweb electrode is particularly advantageous for Li-O2 batteries utilizing the redox mediators in the electrolyte by facilitating the efficient transport of them. The 3-DOM-CNWs electrode could deliver higher specific capacity (∼14,000 mAh g−1) and longer cyclic stability with a better energy efficiency than the conventionally used Ketjen black (KB)-based electrode for redox-mediated Li-O2 batteries, while the specific surface area of 3-DOM-CNWs is only one fourteenth of that of the KB-based air-electrode. This result clearly demonstrates that the electrode architecture based on the hierarchical pore structures significantly enhances the electrochemical performance of Li-O2 batteries by aiding in the transport not only of lithium and oxygen but also the redox mediators. © 2017 Elsevier Ltd.-
dc.description.uri1-
dc.language영어-
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD-
dc.subjectCarbon nanofiber-
dc.subjectCarbon nanoweb-
dc.subjectElectrode-
dc.subjectLi-O2 batteries-
dc.subjectLi2O2-
dc.subjectMacroporous carbon-
dc.titleThree-dimensionally branched carbon nanowebs as air-cathode for redox-mediated Li-O2 batteries-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000401120800014-
dc.identifier.scopusid2-s2.0-85015669587-
dc.identifier.rimsid59257-
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorKisuk Kang-
dc.identifier.doi10.1016/j.carbon.2017.03.033-
dc.identifier.bibliographicCitationCARBON, v.118, pp.114 - 119-
dc.citation.titleCARBON-
dc.citation.volume118-
dc.citation.startPage114-
dc.citation.endPage119-
dc.date.scptcdate2018-10-01-
dc.description.wostc6-
dc.description.scptc6-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusLITHIUM-OXYGEN BATTERIES-
dc.subject.keywordPlusELECTROLYTE-
dc.subject.keywordPlusRECHARGEABILITY-
dc.subject.keywordPlusLI2O2-
dc.subject.keywordPlusNANOPARTICLES-
dc.subject.keywordPlusREDUCTION-
dc.subject.keywordPlusCATALYSTS-
dc.subject.keywordPlusCAPACITY-
dc.subject.keywordPlusNITRATE-
dc.subject.keywordPlusCELLS-
dc.subject.keywordAuthorCarbon nanoweb-
dc.subject.keywordAuthorMacroporous carbon-
dc.subject.keywordAuthorCarbon nanofiber-
dc.subject.keywordAuthorElectrode-
dc.subject.keywordAuthorLi-O-2 batteries-
dc.subject.keywordAuthorLi2O2-
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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