Strategy for yolk-shell structured metal oxide-carbon composite powders and their electrochemical properties for lithium-ion batteries
DC Field | Value | Language |
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dc.contributor.author | Ju, Hyeon Seok | - |
dc.contributor.author | Hong, Young Jun | - |
dc.contributor.author | Cho, Jung Sang | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-04T00:58:42Z | - |
dc.date.available | 2021-09-04T00:58:42Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2016-04 | - |
dc.identifier.issn | 0008-6223 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/89021 | - |
dc.description.abstract | A strategy for the preparation of metal oxide-carbon composite powders with yolk-shell structure by simple spray pyrolysis is introduced. Mn-Sn-O-C composite powders with yolk-shell structure representing the first target material are prepared by one-pot spray pyrolysis and their formation mechanism is evaluated. Phase separation of polyvinylpyrrolidone (PVP), Sn, and Mn components during the drying stage of droplets plays a key role in the formation of yolk-shell structured composite powders. The repeated combustion and contraction processes of the dried powders under N-2 atmosphere produce the desired Mn-Sn-O-C composite powders with yolk-shell structure. The shell and core parts of the yolk-shell powders prepared directly by spray pyrolysis at 900 degrees C are MnO-Mn2SnO4-C and Sn-Mn2SnO4-C composites, respectively. The initial discharge capacities of the composite powders prepared at 700 and 900 degrees C at the current density of 1 A g(-1) are 1058 and 1204 mA h g(-1), respectively. The discharge capacities of the composite powders prepared at 900 degrees C for the 2nd and 100th cycle are 803 and 784 mA h g(-1), respectively. The structural stability of the Mn-Sn-O-C composite powders with yolk-shell structure during cycling results in good electrochemical performance. (C) 2016 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | TEMPLATE-FREE SYNTHESIS | - |
dc.subject | HIGH-PERFORMANCE ANODE | - |
dc.subject | HOLLOW NANOSTRUCTURES | - |
dc.subject | CATHODE MATERIALS | - |
dc.subject | MICROSPHERES | - |
dc.subject | GRAPHENE | - |
dc.subject | STORAGE | - |
dc.subject | CAPACITY | - |
dc.subject | NANOPARTICLES | - |
dc.subject | NANOSHEETS | - |
dc.title | Strategy for yolk-shell structured metal oxide-carbon composite powders and their electrochemical properties for lithium-ion batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.carbon.2016.01.008 | - |
dc.identifier.scopusid | 2-s2.0-84958206575 | - |
dc.identifier.wosid | 000369961400016 | - |
dc.identifier.bibliographicCitation | CARBON, v.100, pp.137 - 144 | - |
dc.relation.isPartOf | CARBON | - |
dc.citation.title | CARBON | - |
dc.citation.volume | 100 | - |
dc.citation.startPage | 137 | - |
dc.citation.endPage | 144 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | TEMPLATE-FREE SYNTHESIS | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE ANODE | - |
dc.subject.keywordPlus | HOLLOW NANOSTRUCTURES | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordAuthor | Yolk-shell | - |
dc.subject.keywordAuthor | Carbon composite | - |
dc.subject.keywordAuthor | Lithium ion battery | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
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