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DC Field | Value | Language |
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dc.citation.endPage | 4815 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 4808 | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 11 | - |
dc.contributor.author | Yoon, Taeseung | - |
dc.contributor.author | Bok, Taesoo | - |
dc.contributor.author | Kim, Chulhyun | - |
dc.contributor.author | Na, Younghoon | - |
dc.contributor.author | Park, Soojin | - |
dc.contributor.author | Kim, Kwang S. | - |
dc.date.accessioned | 2023-12-21T22:14:21Z | - |
dc.date.available | 2023-12-21T22:14:21Z | - |
dc.date.created | 2017-06-21 | - |
dc.date.issued | 2017-05 | - |
dc.description.abstract | Controlling the morphology of nanostructured silicon is critical to improving the structural stability and electrochemical performance in lithium-ion batteries. The use of removable or sacrificial templates is an effective and easy route to synthesize hollow materials. Herein, we demonstrate the synthesis of mesoporous silicon hollow nanocubes (m-Si HCs) derived from a metal-organic framework (MOF) as an anode material with outstanding electrochemical properties. The m-Si HC architecture with the mesoporous external shell (∼15 nm) and internal void (∼60 nm) can effectively accommodate volume variations and relieve diffusion-induced stress/strain during repeated cycling. In addition, this cube architecture provides a high electrolyte contact area because of the exposed active site, which can promote the transportation of Li ions. The well-designed m-Si HC with carbon coating delivers a high reversible capacity of 1728 mAhg-1 with an initial Coulombic efficiency of 80.1% after the first cycle and an excellent rate capability of >1050 mAhg-1 even at a 15 C-rate. In particular, the m-Si HC anode effectively suppresses electrode swelling to ∼47% after 100 cycles and exhibits outstanding cycle stability of 850 mAhg-1 after 800 cycles at a 1 C-rate. Moreover, a full cell (2.9 mAhcm-2) comprising a m-Si HC-graphite anode and LiCoO2 cathode exhibits remarkable cycle retention of 72% after 100 cycles at a 0.2 C-rate. | - |
dc.identifier.bibliographicCitation | ACS NANO, v.11, no.5, pp.4808 - 4815 | - |
dc.identifier.doi | 10.1021/acsnano.7b01185 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.scopusid | 2-s2.0-85019896995 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/22260 | - |
dc.identifier.url | http://pubs.acs.org/doi/abs/10.1021/acsnano.7b01185 | - |
dc.identifier.wosid | 000402498400047 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Mesoporous Silicon Hollow Nanocubes Derived from Metal-Organic Framework Template for Advanced Lithium-Ion Battery Anode | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | silicon anode | - |
dc.subject.keywordAuthor | metal-organic framework | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
dc.subject.keywordAuthor | hollow structure | - |
dc.subject.keywordAuthor | mesoporous structure | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE ANODES | - |
dc.subject.keywordPlus | CARBON COMPOSITE | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCE | - |
dc.subject.keywordPlus | SHELL STRUCTURE | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | SI | - |
dc.subject.keywordPlus | SURFACE | - |
dc.subject.keywordPlus | LITHIATION | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
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