Synthesis of hollow cobalt oxide nanopowders by a salt-assisted spray pyrolysis process applying nanoscale Kirkendall diffusion and their electrochemical properties
DC Field | Value | Language |
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dc.contributor.author | Ju, Hyeon Seok | - |
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 | 2021-09-05T01:14:54Z | - |
dc.date.available | 2021-09-05T01:14:54Z | - |
dc.date.created | 2021-06-15 | - |
dc.date.issued | 2015 | - |
dc.identifier.issn | 1463-9076 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/96344 | - |
dc.description.abstract | A new concept for preparing hollow metal oxide nanopowders by salt-assisted spray pyrolysis applying nanoscale Kirkendall diffusion is introduced. The composite powders of metal oxide and indecomposable metal salt are prepared by spray pyrolysis. Post-treatment under a reducing atmosphere and subsequent washing using distilled water produce aggregation-free metal nanopowders. The metal nanopowders are then transformed into metal oxide hollow nanopowders by nanoscale Kirkendall diffusion. Co3O4 hollow nanopowders are prepared as first target materials. A cobalt oxide-NaCl composite powder prepared by spray pyrolysis transforms into several Co3O4 hollow nanopowders by several treatment processes. The discharge capacities of the Co3O4 nanopowders with filled and hollow structures at a current density of 1 A g(-1) for the 150th cycle are 605 and 775 mA h g(-1), respectively. The hollow structure formed by nanoscale Kirkendall diffusion improves the lithium-ion storage properties of Co3O4 nanopowders. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | CAPACITY ANODE MATERIAL | - |
dc.subject | LITHIUM STORAGE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | NANOSPHERES | - |
dc.subject | SPHERES | - |
dc.subject | MICROSPHERES | - |
dc.subject | NANOWIRES | - |
dc.subject | NANOSTRUCTURES | - |
dc.subject | NANOCRYSTALS | - |
dc.subject | ELECTRODE | - |
dc.title | Synthesis of hollow cobalt oxide nanopowders by a salt-assisted spray pyrolysis process applying nanoscale Kirkendall diffusion and their electrochemical properties | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1039/c5cp06206c | - |
dc.identifier.scopusid | 2-s2.0-84948424090 | - |
dc.identifier.wosid | 000365410100065 | - |
dc.identifier.bibliographicCitation | PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.17, no.47, pp.31988 - 31994 | - |
dc.relation.isPartOf | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.citation.title | PHYSICAL CHEMISTRY CHEMICAL PHYSICS | - |
dc.citation.volume | 17 | - |
dc.citation.number | 47 | - |
dc.citation.startPage | 31988 | - |
dc.citation.endPage | 31994 | - |
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 | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Physics, Atomic, Molecular & Chemical | - |
dc.subject.keywordPlus | CAPACITY ANODE MATERIAL | - |
dc.subject.keywordPlus | LITHIUM STORAGE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOSPHERES | - |
dc.subject.keywordPlus | SPHERES | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | ELECTRODE | - |
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