There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 2943 | - |
dc.citation.number | 3 | - |
dc.citation.startPage | 2933 | - |
dc.citation.title | CHEMISTRY OF MATERIALS | - |
dc.citation.volume | 36 | - |
dc.contributor.author | Lee, Jinsil | - |
dc.contributor.author | Shin, Yonghun | - |
dc.contributor.author | Kim, Taeyun | - |
dc.contributor.author | Choi, Wooseon | - |
dc.contributor.author | Jung, Min-Hyoung | - |
dc.contributor.author | Kim, Young-Min | - |
dc.contributor.author | Yoon, Kyung Joong | - |
dc.contributor.author | Jeong, Hu Young | - |
dc.contributor.author | Lee, Donghwa | - |
dc.contributor.author | Joo, Jong Hoon | - |
dc.date.accessioned | 2024-04-02T09:35:08Z | - |
dc.date.available | 2024-04-02T09:35:08Z | - |
dc.date.created | 2024-03-29 | - |
dc.date.issued | 2024-03 | - |
dc.description.abstract | Perovskite-based materials are typically used as electrodes in solid oxide cells (SOCs) owing to their high catalytic activity in oxygen exchange reactions. The degradation of typical SOCs is a well-known phenomenon that is primarily attributed to the A-site cation redistribution within perovskite-based electrodes at elevated operating temperatures. To date, investigations of the degradation and stability of perovskite electrodes have predominantly focused on assessing thin-film electrodes under an open-circuit voltage. This study proposes a detailed degradation mechanism of electrodes based on bulk-dense materials under the operating conditions of an actual solid oxide fuel cell. Our findings revealed that La0.6Sr0.4Co0.2Fe0.8O3-delta is decomposed into SrO, spinel phase ((CoFe)(3)O-4), and La-rich perovskite in the subsurface region under cathodic bias conditions. Additionally, the results of this study indicate that the phase decomposition associated with elements in the B-site must be considered to improve the enhancement of the stability and oxygen reduction reaction activity. | - |
dc.identifier.bibliographicCitation | CHEMISTRY OF MATERIALS, v.36, no.3, pp.2933 - 2943 | - |
dc.identifier.doi | 10.1021/acs.chemmater.3c03283 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.scopusid | 2-s2.0-85187576918 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81931 | - |
dc.identifier.wosid | 001184219500001 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Phase Stability of Perovskite Oxide Electrodes under Operating Condition in Solid Oxide Fuel Cell | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | THIN-FILM ELECTRODES | - |
dc.subject.keywordPlus | OXYGEN REDUCTION | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | SURFACE MODIFICATION | - |
dc.subject.keywordPlus | DOPANT SEGREGATION | - |
dc.subject.keywordPlus | CATHODE MATERIALS | - |
dc.subject.keywordPlus | LA0.6SR0.4CO0.2FE0.8O3-DELTA | - |
dc.subject.keywordPlus | INTERFACE | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | EXCHANGE | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.