All-in-One Beaker Method for Large-Scale Production of Metal Oxide Hollow Nanospheres Using Nanoscale Kirkendall Diffusion
DC Field | Value | Language |
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dc.contributor.author | Cho, Jung Sang | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-09-04T02:46:31Z | - |
dc.date.available | 2021-09-04T02:46:31Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2016-02-17 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/89503 | - |
dc.description.abstract | A simple and easily scalable process for the formation of metal oxide hollow nanospheres using nanoscale Kirkendall diffusion called the "all-in-one beaker method" is introduced. The Fe2O3, SnO2, NiO, and Co3O4 hollow nanospheres are successfully prepared by the all-in-one beaker method. The detailed formation mechanism of aggregate-free hematite hollow nanospheres is studied. Dimethylformamide solution containing Fe acetate, polyacrylonitrile (PAN), and polystyrene (PS) transforms into aggregate-free Fe2O3 hollow nanospheres. The porous structure formed by the combustion of PS provides a good pathway for the reducing gas. The carbon matrix formed from PAN acts as a barrier, which can prevent the aggregation of metallic Fe nanopowders by surrounding each particle. The Fe-C bulk material formed as an intermediate product transforms into aggregate-free Fe2O3 hollow nanospheres by the nanoscale Kirkendall diffusion process. The mean size and shell thickness of the hollow Fe2O3 nanospheres measured from the TEM images are 52 and 9 nm, respectively. The discharge capacities of the Fe2O3 nanopowders with hollow and dense structures and the bulk material for the 200th cycle at a current density of 0.5 A g(-1) are 1012, 498, and 637 mA h g(-1), respectively, and their capacity retentions calculated compared to those in the second cycles are 92, 45, and 59%, respectively. Additionally, Fe2O3 hollow nanospheres cycled at 1 A g(-1) after 1000 cycles showed a high discharge capacity of 871 mA h g(-1) (capacity retention was 80% from the second cycle). The Fe2O3, SnO2, NiO, and Co3O4 hollow nanospheres show excellent cycling performances for lithium-ion storage because they have a high contact area with the liquid electrolyte and space for accommodating a huge volume change during cycling. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | ONE-POT SYNTHESIS | - |
dc.subject | ANODE MATERIAL | - |
dc.subject | LITHIUM | - |
dc.subject | GRAPHENE | - |
dc.subject | PERFORMANCE | - |
dc.subject | COMPOSITES | - |
dc.subject | FACILE | - |
dc.subject | NANOWIRES | - |
dc.subject | TEMPLATE | - |
dc.subject | SPHERES | - |
dc.title | All-in-One Beaker Method for Large-Scale Production of Metal Oxide Hollow Nanospheres Using Nanoscale Kirkendall Diffusion | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1021/acsami.5b10278 | - |
dc.identifier.scopusid | 2-s2.0-84959020427 | - |
dc.identifier.wosid | 000370583100031 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.8, no.6, pp.3800 - 3809 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 8 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 3800 | - |
dc.citation.endPage | 3809 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | ONE-POT SYNTHESIS | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | FACILE | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | TEMPLATE | - |
dc.subject.keywordPlus | SPHERES | - |
dc.subject.keywordAuthor | Kirkendall diffusion | - |
dc.subject.keywordAuthor | hollow nanosphere | - |
dc.subject.keywordAuthor | iron oxide | - |
dc.subject.keywordAuthor | anode material | - |
dc.subject.keywordAuthor | lithium-ion battery | - |
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