Hierarchical yolk-shell CNT-(NiCo)O/C microspheres prepared by one-pot spray pyrolysis as anodes in lithium-ion batteries
DC Field | Value | Language |
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dc.contributor.author | Oh, Se Hwan | - |
dc.contributor.author | Jo, Min Su | - |
dc.contributor.author | Jeong, Sang Mun | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.contributor.author | Cho, Jung Sang | - |
dc.date.accessioned | 2021-09-01T11:32:37Z | - |
dc.date.available | 2021-09-01T11:32:37Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2019-07-15 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/64099 | - |
dc.description.abstract | This paper presents a hierarchical yolk-shell-structured microsphere comprising a hierarchical carbon nanotube (CNT)-(NiCo) O/C yolk and an embossed hollow thin shell (hereafter denoted as CNT-(NiCo) O/C microsphere) prepared by a one-pot spray pyrolysis process for potential use as an anode in lithium-ion batteries. During spray pyrolysis, the hierarchical CNT-(NiCo) O/C yolk, whose frame is linked with CNTs, is formed by mutual binding of the CNTs and size-controlled polystyrene (PS) nanobeads and subsequent selective decomposition of these nanobeads. Further, phase separation of melted poly(vinylpyrrolidone) facilitates the formation of the hollow shell. The discharge capacity of the CNT-(NiCo) O/C microspheres after 1000 cycles at an extremely high current density of 5.0 A g(-1) is 598 mA h g(-1). The CNT-(NiCo) O/C microspheres show reversible discharge capacities of 886, 709, 509, and 294 mA h g(-1) at current densities of 0.5, 5, 20, and 50 A g(-1), respectively. The unique nanostructure of the CNT-(NiCo) O/C microspheres with high electrical conductivity promotes the transfer kinetics of electrons and Li+ ions, which consequently leads to their improved electrochemical performances. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | REDUCED GRAPHENE OXIDE | - |
dc.subject | HIGH-PERFORMANCE ANODE | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | HOLLOW NANOSPHERES | - |
dc.subject | GRAPHITIC CARBON | - |
dc.subject | FACILE SYNTHESIS | - |
dc.subject | NICKEL-FOAM | - |
dc.subject | NANOFIBERS | - |
dc.subject | NANOTUBES | - |
dc.subject | NANORODS | - |
dc.title | Hierarchical yolk-shell CNT-(NiCo)O/C microspheres prepared by one-pot spray pyrolysis as anodes in lithium-ion batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.cej.2019.02.144 | - |
dc.identifier.scopusid | 2-s2.0-85062244893 | - |
dc.identifier.wosid | 000462769600042 | - |
dc.identifier.bibliographicCitation | CHEMICAL ENGINEERING JOURNAL, v.368, pp.438 - 447 | - |
dc.relation.isPartOf | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.title | CHEMICAL ENGINEERING JOURNAL | - |
dc.citation.volume | 368 | - |
dc.citation.startPage | 438 | - |
dc.citation.endPage | 447 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordPlus | REDUCED GRAPHENE OXIDE | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE ANODE | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | HOLLOW NANOSPHERES | - |
dc.subject.keywordPlus | GRAPHITIC CARBON | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | NICKEL-FOAM | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordPlus | NANOTUBES | - |
dc.subject.keywordAuthor | Yolk-shell | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
dc.subject.keywordAuthor | Lithium ion batteries | - |
dc.subject.keywordAuthor | Anode materials | - |
dc.subject.keywordAuthor | (Ni,Co)O solid solution | - |
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