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DC Field | Value | Language |
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dc.citation.number | 19 | - |
dc.citation.startPage | 195403 | - |
dc.citation.title | NANOTECHNOLOGY | - |
dc.citation.volume | 29 | - |
dc.contributor.author | Jeong, Gyoung Hwa | - |
dc.contributor.author | Lee, Ilbok | - |
dc.contributor.author | Lee, Donghyun | - |
dc.contributor.author | Lee, Hea-Min | - |
dc.contributor.author | Baek, Seungmin | - |
dc.contributor.author | Kwon, O-Phil | - |
dc.contributor.author | Kumta, Prashant N. | - |
dc.contributor.author | Yoon, Songhun | - |
dc.contributor.author | Kim, Sang-Wook | - |
dc.date.accessioned | 2023-12-21T21:07:58Z | - |
dc.date.available | 2023-12-21T21:07:58Z | - |
dc.date.created | 2018-02-26 | - |
dc.date.issued | 2018-03 | - |
dc.description.abstract | Fabrication of β-CoV3O8 nanorods embedded in graphene sheets and its application as electrochemical charge storage electrodes is reported. From surfactant treatment of raw graphite, graphene was directly prepared and its nanocomposite with β-CoV3O8 nanorods distributed between graphene layers (β-CoV3O8-G) was synthesized by hydrothermal method. When applied as anode in lithium-ion batteries, the β-CoV3O8-G anode exhibits greatly improved charge and discharge capacities of 790 and 627 mAhbold dotg-1, respectively, with unexpectedly high initial efficiency of 82%. The observed discharge capacity reflected that at least 3.7 mol of Li+ is selectively accumulated within the β-CoV3O8 phase (LixCoV3O8, x > 3.7), indicative of significantly improved Li+ uptake when compared with aggregated β-CoV3O8 nanorods. Moreover, very distinct peak plateaus and greatly advanced cycling performance are observed, showing more improved Li+ storage within the β-CoV3O8 phase. As a supercapacitor electrode, moreover, our composite electrode exhibits very high peak pseudocapacitances of 2.71 Fbold dotcm−2 and 433.65 Fbold dotg−1 in β-CoV3O8 phase with extremely stable cycling performance. These remarkably enhanced performances in the individual electrochemical charge storage electrodes are attributed to the novel phase formation of β-CoV3O8 and its optimized nanocomposite structure with graphene, which yield fast electrical conduction through graphene, easy accessibility of ions through the open multilayer nanosheet-structure, and a relaxation space between the β-CoV3O8-G. | - |
dc.identifier.bibliographicCitation | NANOTECHNOLOGY, v.29, no.19, pp.195403 | - |
dc.identifier.doi | 10.1088/1361-6528/aaae3e | - |
dc.identifier.issn | 0957-4484 | - |
dc.identifier.scopusid | 2-s2.0-85044022583 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23859 | - |
dc.identifier.url | http://iopscience.iop.org/article/10.1088/1361-6528/aaae3e | - |
dc.identifier.wosid | 000427614500003 | - |
dc.language | 영어 | - |
dc.publisher | IOP PUBLISHING LTD | - |
dc.title | Fabrication of β-CoV3O8 nanorods embedded in graphene sheets and their application for electrochemical charge storage electrode | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science; Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | graphite | - |
dc.subject.keywordAuthor | Li-ion battery | - |
dc.subject.keywordAuthor | supercapacitor | - |
dc.subject.keywordAuthor | β-CoV3O8 nanorods | - |
dc.subject.keywordAuthor | graphene | - |
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