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DC Field | Value | Language |
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dc.citation.endPage | 32 | - |
dc.citation.startPage | 25 | - |
dc.citation.title | ELECTROCHIMICA ACTA | - |
dc.citation.volume | 252 | - |
dc.contributor.author | Hwang, Chihyun | - |
dc.contributor.author | Choi, Sinho | - |
dc.contributor.author | Jung, Gwan Yeong | - |
dc.contributor.author | Yang, Juchan | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Park, Soojin | - |
dc.contributor.author | Song, Hyun-Kon | - |
dc.date.accessioned | 2023-12-21T21:42:00Z | - |
dc.date.available | 2023-12-21T21:42:00Z | - |
dc.date.created | 2017-09-27 | - |
dc.date.issued | 2017-10 | - |
dc.description.abstract | Antimony metal nanoparticles wrapped with a-few-layer graphene coat (Sb@Gn) were fabricated from their oxide form (Sb2O3) in a micrometer dimension using a novel two-step ball-milling process. The first mechanochemical process was designed to decrease the particle size of Sb2O3 microparticles for ensuring advantages of nano size and to subsequently coat the Sb2O3 nanoparticles with a-few-layer graphene (Sb2O3@Gn). The second metallomechanical ball-milling process reduced the oxide to its metal form (Sb@Gn) by the help of Zn as a metallic reductant. The graphene layer (@Gn) blocked the alloying reaction between Sb and Zn, limiting the size of Sb particles during the metallomechanical reduction step. During reduction, oxygen species were transferred from of Sb2O3 through @Gn to Zn along redox transfer pathways rather than direct mass transfer via unsaturated vacancies in the @Gn. the redox transfer involving oxidation of @Gn by O-2 is plausible routes for O-2 transfer in the metallomechanical reduction. The Sb@Gn anode exhibited outstanding capacity retention along charge/discharge cycles and improved rate capability in sodium-ion batteries. The @Gn provided conductive pathways to the Sb core and limited size expansion during sodium-lithium alloying. | - |
dc.identifier.bibliographicCitation | ELECTROCHIMICA ACTA, v.252, pp.25 - 32 | - |
dc.identifier.doi | 10.1016/j.electacta.2017.08.166 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.scopusid | 2-s2.0-85028716893 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/22767 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0013468617318261?via%3Dihub | - |
dc.identifier.wosid | 000413009800004 | - |
dc.language | 영어 | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Graphene-wrapped Porous Sb Anodes for Sodium-Ion Batteries by Mechanochemical Compositing and Metallomechanical Reduction of Sb2O3 | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | antimony anode | - |
dc.subject.keywordAuthor | high-energy ball milling | - |
dc.subject.keywordAuthor | mechanochemical reaction | - |
dc.subject.keywordAuthor | metallomechanical reduction | - |
dc.subject.keywordAuthor | sodium-ion batteries | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | NA-ION | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | PARTICLES | - |
dc.subject.keywordPlus | HYBRID | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | XPS | - |
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