Facile one-pot transformation using structure-guided combustion waves of micro-nanostructured beta-Bi2O3 to alpha-Bi2O3@C and analysis of electrochemical capacitance
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hwang, Hayoung | - |
dc.contributor.author | Shin, Jung-ho | - |
dc.contributor.author | Lee, Kang Yeol | - |
dc.contributor.author | Choi, Wonjoon | - |
dc.date.accessioned | 2021-09-02T16:08:53Z | - |
dc.date.available | 2021-09-02T16:08:53Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-01-15 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/77964 | - |
dc.description.abstract | Precise phase-transformation can facilitate control of the properties of various materials, while an organic coating surrounding inorganic materials can yield useful characteristics. Herein, we demonstrate facile, selective manipulation of micro-nanostructured bismuth oxide (Bi2O3) for phase transformation from microflower-like beta-Bi2O3 to micropill-like alpha-Bi2O3, with carbon-coating layer deposition, using structure-guided combustion waves (SGCWs). Microflower-like. alpha-Bi2O3 are synthesized as core materials and nitrocellulose is coated on their surfaces for the formation of core-shell hybrid structures of Bi2O3 and chemical fuel. The SGCWs, which propagate along the core-material and fuel interfaces, apply high thermal energy (550-600 degrees C) and deposit incompletely combusted carbonaceous fuel on the microflower-like beta-Bi2O3 to enable transformation to alpha-phase and carbon-coating-layer synthesis. SGCW-induced improvements to the electrochemical characteristics of the developed micropill-like alpha-Bi2O3@C, compared with the microflower-like beta-Bi2O3, are investigated. The enhanced stability from the alpha-phase Bi2O3 and micropill-like structures during charge-discharge cycling improves the specific capacitance, while the carbon-coating layers facilitate increased electrical conductivity. SGCW-based methods exhibit high potential for selective phase manipulation and synthesis of carbon coatings surrounding micro-nanomaterials. They constitute a low-cost, fast, large-scale process for metal oxides, ceramics, and hybrid materials, implemented through control of the processing parameters by tuning the temperature, chemical fuel, and ambient conditions. (C) 2017 Elsevier B.V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | THERMOPOWER WAVE | - |
dc.subject | MORPHOLOGY | - |
dc.subject | PERFORMANCE | - |
dc.subject | PHASE | - |
dc.subject | NANOPARTICLES | - |
dc.subject | ENERGY | - |
dc.subject | OXIDES | - |
dc.subject | BI2O3 | - |
dc.subject | DECOMPOSITION | - |
dc.subject | NANOSPHERES | - |
dc.title | Facile one-pot transformation using structure-guided combustion waves of micro-nanostructured beta-Bi2O3 to alpha-Bi2O3@C and analysis of electrochemical capacitance | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Wonjoon | - |
dc.identifier.doi | 10.1016/j.apsusc.2017.09.157 | - |
dc.identifier.scopusid | 2-s2.0-85029817256 | - |
dc.identifier.wosid | 000415227000053 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.428, pp.422 - 431 | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 428 | - |
dc.citation.startPage | 422 | - |
dc.citation.endPage | 431 | - |
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 | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | THERMOPOWER WAVE | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | OXIDES | - |
dc.subject.keywordPlus | BI2O3 | - |
dc.subject.keywordPlus | DECOMPOSITION | - |
dc.subject.keywordPlus | NANOSPHERES | - |
dc.subject.keywordAuthor | Combustion waves | - |
dc.subject.keywordAuthor | Bismuth oxide | - |
dc.subject.keywordAuthor | Phase transformation | - |
dc.subject.keywordAuthor | Carbon coating | - |
dc.subject.keywordAuthor | Electrochemical reaction | - |
dc.subject.keywordAuthor | Supercapacitor | - |
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.