Electrochemical properties of micron-sized Co3O4 hollow powders consisting of size controlled hollow nanospheres
DC Field | Value | Language |
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dc.contributor.author | Park, Jin-Sung | - |
dc.contributor.author | Cho, Jung Sang | - |
dc.contributor.author | Kim, Jong Hwa | - |
dc.contributor.author | Choi, Yun Ju | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-03T15:35:54Z | - |
dc.date.available | 2021-09-03T15:35:54Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2016-12-25 | - |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/86499 | - |
dc.description.abstract | Micron-sized Co3O4 hollow powders consisting of size controlled hollow nanospheres are prepared by applying Ostwald ripening and Kirkendall effect to the spray pyrolysis process. The Co-C composite powders uniformly dispersed with different sizes of metallic Co nanocrystals are formed by reduction of the cobalt oxide-carbon composite powders prepared using spray pyrolysis. Subsequent oxidation of the Co-C composite powders with filled structures forms the micron-sized Co3O4 hollow powders consisting of size controlled hollow nanospheres. The mean sizes of the Co3O4 hollow nanospheres oxidized from Co-C composite powders formed at reduction temperatures of 400, 600, and 800 degrees C are 37, 55, and 73 nm, respectively. The discharge capacities of the Co3O4 powders formed from the Co-C composite powders reduced at temperatures of 400, 600, and 800 degrees C for the 300th cycle are 644, 702, and 660 mA h g(-1), respectively, and their capacity retentions calculated from the second cycle are 81, 86, and 84%, respectively. The porous-structured Co3O4 powders formed from the Co-C composite powders reduced at 800 degrees C show slightly better rate performance than those of the other two samples. (C) 2016 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.subject | ION BATTERY ANODE | - |
dc.subject | PHOTOCATALYTIC ACTIVITY | - |
dc.subject | CARBON | - |
dc.subject | PERFORMANCE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | SHELL | - |
dc.subject | COMPOSITES | - |
dc.subject | NANOFIBERS | - |
dc.subject | NANOWIRES | - |
dc.subject | HYDROGEN | - |
dc.title | Electrochemical properties of micron-sized Co3O4 hollow powders consisting of size controlled hollow nanospheres | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Jin-Sung | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1016/j.jallcom.2016.07.233 | - |
dc.identifier.scopusid | 2-s2.0-84981513609 | - |
dc.identifier.wosid | 000384427200073 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ALLOYS AND COMPOUNDS, v.689, pp.554 - 563 | - |
dc.relation.isPartOf | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.citation.title | JOURNAL OF ALLOYS AND COMPOUNDS | - |
dc.citation.volume | 689 | - |
dc.citation.startPage | 554 | - |
dc.citation.endPage | 563 | - |
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.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | ION BATTERY ANODE | - |
dc.subject.keywordPlus | PHOTOCATALYTIC ACTIVITY | - |
dc.subject.keywordPlus | CARBON | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | SHELL | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordAuthor | Kirkendall diffusion | - |
dc.subject.keywordAuthor | Ostwald ripening | - |
dc.subject.keywordAuthor | Cobalt oxide | - |
dc.subject.keywordAuthor | Anode material | - |
dc.subject.keywordAuthor | Lithium ion battery | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
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