Fe-based hybrid electrocatalysts for nonaqueous lithium-oxygen batteries
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Seun | - |
dc.contributor.author | Lee, Gwang-Hee | - |
dc.contributor.author | Lee, Hack Jun | - |
dc.contributor.author | Dar, Mushtaq Ahmad | - |
dc.contributor.author | Kim, Dong-Wan | - |
dc.date.accessioned | 2021-09-03T02:52:20Z | - |
dc.date.available | 2021-09-03T02:52:20Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-08-25 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/82528 | - |
dc.description.abstract | Lithium-oxygen batteries promise high energy densities, but are confronted with challenges, such as high overpotentials and sudden death during discharge-charge cycling, because the oxygen electrode is covered with the insulating discharge product, Li2O2. Here, we synthesized low-cost Fe-based nanocomposites via an electrical wire pulse process, as a hybrid electrocatalyst for the oxygen electrode of Li-O-2 batteries. Fe3O4-Fe nanohybrids-containing electrodes exhibited a high discharge capacity (13,890 mA h g(c)(-1) at a current density of 500 mA g(c)(-1)), long cycle stability (100 cycles at a current rate of 500 mA g(c)(-1) and fixed capacity regime of 1,000 mA h g(c)(-1)), and low overpotential (1.39 V at 40 cycles). This superior performance resulted from the good electrical conductivity of the Fe metal nanoparticles during discharge-charge cycling, which could enhance the oxygen reduction reaction and oxygen evolution reaction activities. We have demonstrated the increased electrical conductivity of the Fe3O4-Fe nanohybrids using electrochemical impedance spectroscopy. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | AIR BATTERIES | - |
dc.subject | FACILE SYNTHESIS | - |
dc.subject | METAL-OXIDES | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | NANOPARTICLES | - |
dc.subject | ELECTRODES | - |
dc.subject | REDUCTION | - |
dc.title | Fe-based hybrid electrocatalysts for nonaqueous lithium-oxygen batteries | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Gwang-Hee | - |
dc.contributor.affiliatedAuthor | Kim, Dong-Wan | - |
dc.identifier.doi | 10.1038/s41598-017-09982-9 | - |
dc.identifier.scopusid | 2-s2.0-85028350474 | - |
dc.identifier.wosid | 000408448600032 | - |
dc.identifier.bibliographicCitation | SCIENTIFIC REPORTS, v.7 | - |
dc.relation.isPartOf | SCIENTIFIC REPORTS | - |
dc.citation.title | SCIENTIFIC REPORTS | - |
dc.citation.volume | 7 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | AIR BATTERIES | - |
dc.subject.keywordPlus | FACILE SYNTHESIS | - |
dc.subject.keywordPlus | METAL-OXIDES | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | ELECTRODES | - |
dc.subject.keywordPlus | REDUCTION | - |
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.