One-Pot Synthesis of Antimony-Embedded Silicon Oxycarbide Materials for High-Performance Sodium-Ion Batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Yongho | - |
dc.contributor.author | Lee, Kwan Young | - |
dc.contributor.author | Choi, Wonchang | - |
dc.date.accessioned | 2021-09-02T23:01:44Z | - |
dc.date.available | 2021-09-02T23:01:44Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2017-11-17 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/81530 | - |
dc.description.abstract | Sodium-ion batteries have recently attracted intensive attention due to their natural abundance and low cost. Antimony is a desirable candidate for an anode material for sodium-ion batteries due to its high theoretical capacity (660 mA h g(-1)). However, the utilization of alloy-based anodes is still limited by their inherent huge volume changes and sluggish kinetics. The Sb-embedded silicon oxycarbide (SiOC) composites are simply synthesized via a one-pot pyrolysis process at 900 degrees C without any additives or surfactants, taking advantage of the superior self-dispersion properties of antimony acetate powders in silicone oil. The structural and morphological characterizations confirm that Sb nanoparticles are homogeneously embedded into the amorphous SiOC matrix. The composite materials exhibit an initial desodiation capacity of around 510 mA h g(-1) and maintained an excellent capacity retention above 97% after 250 cycles. The rate capability test reveals that the composites deliver capacity greater than 453 mA h g(-1), even at the high current density of 20 C rate, owing to the free-carbon domain of SiOC material. The electrochemical and postmortem analyses confirm that the SiOC matrix with a uniform distribution of Sb nanoparticles provides the mechanical strength without degradation in conductive characteristics, suppressing the agglomeration of Sb particles during the electrochemical reaction. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.subject | HIGH-CAPACITY ANODE | - |
dc.subject | LI-ION | - |
dc.subject | ELECTROCHEMICAL PROPERTIES | - |
dc.subject | MORPHOLOGICAL EVOLUTION | - |
dc.subject | CYCLING STABILITY | - |
dc.subject | CATHODE MATERIALS | - |
dc.subject | SB NANOPARTICLES | - |
dc.subject | CARBON NANOTUBES | - |
dc.subject | COMPOSITE ANODES | - |
dc.subject | ENERGY-STORAGE | - |
dc.title | One-Pot Synthesis of Antimony-Embedded Silicon Oxycarbide Materials for High-Performance Sodium-Ion Batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kwan Young | - |
dc.identifier.doi | 10.1002/adfm.201702607 | - |
dc.identifier.scopusid | 2-s2.0-85029743158 | - |
dc.identifier.wosid | 000416693600009 | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.27, no.43 | - |
dc.relation.isPartOf | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 27 | - |
dc.citation.number | 43 | - |
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 | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | HIGH-CAPACITY ANODE | - |
dc.subject.keywordPlus | LI-ION | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | MORPHOLOGICAL EVOLUTION | - |
dc.subject.keywordPlus | CYCLING STABILITY | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | SB NANOPARTICLES | - |
dc.subject.keywordPlus | CARBON NANOTUBES | - |
dc.subject.keywordPlus | COMPOSITE ANODES | - |
dc.subject.keywordPlus | ENERGY-STORAGE | - |
dc.subject.keywordAuthor | anodes | - |
dc.subject.keywordAuthor | antimony | - |
dc.subject.keywordAuthor | silicone oils | - |
dc.subject.keywordAuthor | silicon oxycarbide | - |
dc.subject.keywordAuthor | sodium-ion batteries | - |
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.