Amorphous iron oxide-selenite composite microspheres with a yolk-shell structure as highly efficient anode materials for lithium-ion batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Ju Hyeong | - |
dc.contributor.author | Park, Gi Dae | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.date.accessioned | 2021-08-30T23:17:43Z | - |
dc.date.available | 2021-08-30T23:17:43Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-05-21 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/55656 | - |
dc.description.abstract | Yolk-shell structured transition metal compounds have intrinsic structural advantages as anode materials and have been synthesized in a highly crystalline form. Thus, development of a synthesis process for a yolk-shell structure with an amorphous state, that displays high structural stability and fast ionic diffusion, is a notable research subject, with wide applications in fields such as energy storage. Herein, a novel approach for synthesizing amorphous materials with a yolk-shell structure using several facile phase transformation processes is presented. Crystalline iron oxide microspheres with a yolk-shell structure were formed by oxidation of the spray-dried product at 400 degrees C. Using the pitch/tetrahydrofuran solution infiltration method, pitch-infiltrated iron oxide was selenized at 350 degrees C to form a crystalline iron selenide-C composite. The following partial oxidation process at 375 degrees C produced a yolk-shell structured amorphous iron oxide-selenite composite. The amorphous characteristics, the yolk-shell structure, and the formation of a heterostructured interface from iron selenite during the initial cycle contributed to high electrochemical kinetic properties and excellent cycling performance of the iron oxide-selenite composite. The amorphous iron oxide-iron selenite yolk-shell microspheres exhibited enhanced reversible capacities, cycling stability, and remarkable electrochemical kinetic properties when compared to crystalline iron oxide. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HIGH-PERFORMANCE ANODE | - |
dc.subject | GRAPHITIC CARBON | - |
dc.subject | HIGH-CAPACITY | - |
dc.subject | THERMAL-DECOMPOSITION | - |
dc.subject | ENERGY-STORAGE | - |
dc.subject | LONG-LIFE | - |
dc.subject | NANOFIBERS | - |
dc.subject | NANORODS | - |
dc.subject | SODIUM | - |
dc.subject | FE2O3 | - |
dc.title | Amorphous iron oxide-selenite composite microspheres with a yolk-shell structure as highly efficient anode materials for lithium-ion batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kang, Yun Chan | - |
dc.identifier.doi | 10.1039/d0nr01905d | - |
dc.identifier.scopusid | 2-s2.0-85085264427 | - |
dc.identifier.wosid | 000537113200032 | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.12, no.19, pp.10790 - 10798 | - |
dc.relation.isPartOf | NANOSCALE | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 12 | - |
dc.citation.number | 19 | - |
dc.citation.startPage | 10790 | - |
dc.citation.endPage | 10798 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE ANODE | - |
dc.subject.keywordPlus | GRAPHITIC CARBON | - |
dc.subject.keywordPlus | HIGH-CAPACITY | - |
dc.subject.keywordPlus | THERMAL-DECOMPOSITION | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordPlus | LONG-LIFE | - |
dc.subject.keywordPlus | NANOFIBERS | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordPlus | SODIUM | - |
dc.subject.keywordPlus | FE2O3 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.