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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 4668 | - |
dc.citation.number | 14 | - |
dc.citation.startPage | 4663 | - |
dc.citation.title | ELECTROCHIMICA ACTA | - |
dc.citation.volume | 52 | - |
dc.contributor.author | Kwon, Yoojung | - |
dc.contributor.author | Park, Gyeong-Su | - |
dc.contributor.author | Cho, Jaephil | - |
dc.date.accessioned | 2023-12-22T09:36:13Z | - |
dc.date.available | 2023-12-22T09:36:13Z | - |
dc.date.created | 2014-05-19 | - |
dc.date.issued | 2007-04 | - |
dc.description.abstract | Highly lithium-electroactive Si quantum dots (n-Si), coated with an amorphous carbon layer, were prepared by of butyl-capped Si annealing at 700 or 900 °C. The ordering of the carbon layer structure increased with increasing annealing temperature while the thickness decreased to 1 from 2 nm due to the increased ordering of carbon. n-Si, annealed at 900 °C, had the same particle size (5 nm) as n-Si annealed at 700 °C. In contrast to Si nanocrystals with an average particle size of 30 nm that had a first charge capacity of 225 mAh/g with a very small coulombic efficiency of 4%, n-Si that annealed at 900 °C possessed a first charge capacity of 1257 mAh/g with a significantly enhanced coulombic efficiency of 71%. This improvement was due to the uniform distribution of n-Si with a carbon layer that prohibited n-Si aggregation during cycling. | - |
dc.identifier.bibliographicCitation | ELECTROCHIMICA ACTA, v.52, no.14, pp.4663 - 4668 | - |
dc.identifier.doi | 10.1016/j.electacta.2007.01.077 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.scopusid | 2-s2.0-33947182484 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/4639 | - |
dc.identifier.url | http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33947182484 | - |
dc.identifier.wosid | 000246021400008 | - |
dc.language | 영어 | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Synthesis and electrochemical properties of lithium-electroactive surface-stabilized silicon quantum dots | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Si | - |
dc.subject.keywordAuthor | nanoparticle | - |
dc.subject.keywordAuthor | anode | - |
dc.subject.keywordAuthor | Li battery | - |
dc.subject.keywordAuthor | capacity | - |
dc.subject.keywordAuthor | cycle life | - |
dc.subject.keywordPlus | SECONDARY BATTERY | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | ION BATTERIES | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | SI | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANOCLUSTERS | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | ROUTE | - |
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