Morphological and structural evolution of Si-Cu nanocomposites by an instantaneous vapor-liquid-solid growth and the electrochemical lithiation/delithiation performances
DC Field | Value | Language |
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dc.contributor.author | Liang, Jingshuang | - |
dc.contributor.author | Yang, Yulin | - |
dc.contributor.author | Gao, Jian | - |
dc.contributor.author | Zhou, Lei | - |
dc.contributor.author | Gao, Ming | - |
dc.contributor.author | Zhang, Zhongyuan | - |
dc.contributor.author | Yang, Wenfei | - |
dc.contributor.author | Javid, Muhammad | - |
dc.contributor.author | Jung, Youngguan | - |
dc.contributor.author | Dong, Xinglong | - |
dc.contributor.author | Cao, Guozhong | - |
dc.date.accessioned | 2023-12-11T18:00:30Z | - |
dc.date.available | 2023-12-11T18:00:30Z | - |
dc.date.issued | 2019-03 | - |
dc.identifier.issn | 1432-8488 | - |
dc.identifier.issn | 1433-0768 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/25554 | - |
dc.description.abstract | Polymorphic Si-Cu nanocomposites of Si@Cu3Si nanowires, Si@Cu3Si nanorods, and Si@Cu3Si(Cu) nanocapsules are synthesized via the high-energy arc-discharge plasma. Electrochemical performances of these materials as anodes for lithium-ion batteries are also investigated. It is found that the morphologies and structures of above Si-Cu nanocomposites are alterable by the composition of the raw target and synthetic conditions. Optical emission spectroscopy is adopted to reveal the energetic states of excited atoms in plasma; thus, the temperature of working plasma as well as the evaporation rate of each element can be evaluated, in which both favor to control the composition of Si-Cu nanopowder product and the aborative nanostructures. Formation of multifarious Si-Cu nanostructures is understood from the in situ nucleation and anisotropic growth processes, induced by an instantaneous vapor-liquid-solid mechanism within the robust plasma. The optimal composition and microstructure of Si@Cu3Si nanorods are found for the excellent electrochemical behaviors, typically a stable discharge capacity of 783mAhg(-1) with the coulombic efficiency of 98.51% at 100mAg(-1) after 100 cycles. Good performances are attributed to one-dimensional Si-Cu nanostructure, which favors to promote Li+ ion diffusion. Metallic Cu component released from Cu3Si precursor enhances the conductivity, buffers the volume change, and facilitates the stabilization in cycling. | - |
dc.format.extent | 14 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | SPRINGER | - |
dc.title | Morphological and structural evolution of Si-Cu nanocomposites by an instantaneous vapor-liquid-solid growth and the electrochemical lithiation/delithiation performances | - |
dc.type | Article | - |
dc.publisher.location | 미국 | - |
dc.identifier.doi | 10.1007/s10008-018-04173-6 | - |
dc.identifier.wosid | 000459805700006 | - |
dc.identifier.bibliographicCitation | JOURNAL OF SOLID STATE ELECTROCHEMISTRY, v.23, no.3, pp 735 - 748 | - |
dc.citation.title | JOURNAL OF SOLID STATE ELECTROCHEMISTRY | - |
dc.citation.volume | 23 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 735 | - |
dc.citation.endPage | 748 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.subject.keywordPlus | ROOM-TEMPERATURE OXIDATION | - |
dc.subject.keywordPlus | LI-ION BATTERIES | - |
dc.subject.keywordPlus | DC ARC-DISCHARGE | - |
dc.subject.keywordPlus | ANODE MATERIAL | - |
dc.subject.keywordPlus | THIN-FILMS | - |
dc.subject.keywordPlus | ALLOY NANOPARTICLES | - |
dc.subject.keywordPlus | NEGATIVE ELECTRODES | - |
dc.subject.keywordPlus | SILICON NANOWIRES | - |
dc.subject.keywordPlus | COMPOSITE ANODE | - |
dc.subject.keywordPlus | RATE CAPABILITY | - |
dc.subject.keywordAuthor | Polymorphic | - |
dc.subject.keywordAuthor | Si-Cu nanocomposite | - |
dc.subject.keywordAuthor | Arc-discharge plasma | - |
dc.subject.keywordAuthor | Anode | - |
dc.subject.keywordAuthor | Lithium-ion battery | - |
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