Metal organic framework-templated hollow Co3O4 nanosphere aggregate/N-doped graphitic carbon composite powders showing excellent lithium-ion storage performances
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Seung-Keun | - |
dc.contributor.author | Kim, Jin Koo | - |
dc.contributor.author | Kim, Jong Hwa | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-03T00:54:18Z | - |
dc.date.available | 2021-09-03T00:54:18Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.issn | 1044-5803 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/82104 | - |
dc.description.abstract | Hollow Co3O4 nanosphere aggregate/N-doped graphitic carbon (HCO/NGC) composite powders, exhibiting excellent Li-ion storage performances, were prepared by applying metal-organic frameworks (MOFs). Zeolitic imidazolate framework (ZIF)-67 cubes were reduced to produce Co/NGC composite powders. The Co/NGC composite powders were oxidized to produce cubic HCO/NGC composite powders, in which the hollow Co3O4 nanospheres were uniformly covered with a NGC layer. The Co nanocrystals transformed into hollow nano spheres during oxidation via the nanoscale Kirkendall diffusion process. The unique composite structure accommodates mechanical stress owing to the void spaces within the Co3O4 nanospheres; it also prevents structure collapse during cycling owing to the presence of the NGC matrix. Thus, the cubic hollow powders exhibited excellent electrochemical performances when used as an anode material in Li-ion batteries (LIBs). Following 250 cycles, the HCO/NGC composite powders with 11 wt% NGC delivered a discharge capacity of 1030 mA h g(-1) at a current density of 1 A g(-1). In addition, the composite powders delivered a discharge capacity of 738 mA h g(-1) even at a high current density of 10 A g(-1). | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.subject | REDUCED GRAPHENE OXIDE | - |
dc.subject | STEP HYDROTHERMAL SYNTHESIS | - |
dc.subject | CAPACITY ANODE MATERIAL | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | NANOPARTICLES | - |
dc.subject | BATTERY | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | NANOCOMPOSITE | - |
dc.subject | MICROSPHERES | - |
dc.subject | NANOFIBERS | - |
dc.title | Metal organic framework-templated hollow Co3O4 nanosphere aggregate/N-doped graphitic carbon composite powders showing excellent lithium-ion storage performances | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.matchar.2017.08.026 | - |
dc.identifier.scopusid | 2-s2.0-85028705365 | - |
dc.identifier.wosid | 000413878800037 | - |
dc.identifier.bibliographicCitation | MATERIALS CHARACTERIZATION, v.132, pp.320 - 329 | - |
dc.relation.isPartOf | MATERIALS CHARACTERIZATION | - |
dc.citation.title | MATERIALS CHARACTERIZATION | - |
dc.citation.volume | 132 | - |
dc.citation.startPage | 320 | - |
dc.citation.endPage | 329 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Characterization & Testing | - |
dc.subject.keywordPlus | REDUCED GRAPHENE OXIDE | - |
dc.subject.keywordPlus | STEP HYDROTHERMAL SYNTHESIS | - |
dc.subject.keywordPlus | CAPACITY ANODE MATERIAL | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | BATTERY | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | NANOCOMPOSITE | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordAuthor | Metal-organic framework | - |
dc.subject.keywordAuthor | Cobalt oxide | - |
dc.subject.keywordAuthor | Kirkendall effect | - |
dc.subject.keywordAuthor | Hollow structure | - |
dc.subject.keywordAuthor | Graphitic carbon | - |
dc.subject.keywordAuthor | Lithium-ion batteries | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.