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DC Field | Value | Language |
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dc.citation.endPage | 2129 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 2122 | - |
dc.citation.title | ACS ENERGY LETTERS | - |
dc.citation.volume | 5 | - |
dc.contributor.author | Kwak, Won-Jin | - |
dc.contributor.author | Park, Jiwon | - |
dc.contributor.author | Kim, Hun | - |
dc.contributor.author | Joo, Jung Min | - |
dc.contributor.author | Aurbach, Doron | - |
dc.contributor.author | Byon, Hye Ryung | - |
dc.contributor.author | Sun, Yang-Kook | - |
dc.date.accessioned | 2023-12-21T17:17:40Z | - |
dc.date.available | 2023-12-21T17:17:40Z | - |
dc.date.created | 2023-07-14 | - |
dc.date.issued | 2020-06 | - |
dc.description.abstract | Employing organic redox mediators (ORMs) for lithium-oxygen (Li-O-2) batteries has emerged as an important strategy to suppress charging overpotentials. Judicious molecular designs of ORMs can also tailor their redox potential and electron-transfer rate to optimize the catalytic efficiency. However, the stability of ORMs in Li-O-2 cells was scarcely studied. Here, the catalytic efficiency and stability of several important ORMs are assessed through in situ gas analysis and reactivity tests with singlet oxygen. Some well-known ORMs are detrimentally decomposed during the first cycle in Li-O-2 cells, whereas nitroxyl-radical-based ORMs bear the most stable and efficient response. Analogous nitroxyl-radical derivatives further increase round-trip energy efficiency and electron-transfer kinetics. This study underlines chemical stability aspects of ORMs, which are mandatory for the long-term cyclability in Li-O-2 cells. We emphasize that besides the importance of ORMs in these systems and their proper selection, an effective operation of Li-O-2 cells depends also strongly on the stability of the carbonaceous cathodes and the electrolyte solutions. The stability of all the components in these systems is inter-related. | - |
dc.identifier.bibliographicCitation | ACS ENERGY LETTERS, v.5, no.6, pp.2122 - 2129 | - |
dc.identifier.doi | 10.1021/acsenergylett.0c00883 | - |
dc.identifier.issn | 2380-8195 | - |
dc.identifier.scopusid | 2-s2.0-85087148604 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/64857 | - |
dc.identifier.wosid | 000541766000047 | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society (ACS) | - |
dc.title | Oxidation Stability of Organic Redox Mediators as Mobile Catalysts in Lithium–Oxygen Batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical;Electrochemistry;Energy & Fuels;Nanoscience & Nanotechnology;Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry;Electrochemistry;Energy & Fuels;Science & Technology - Other Topics;Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | LI-O-2 BATTERIES | - |
dc.subject.keywordPlus | ELECTROLYTE | - |
dc.subject.keywordPlus | CHEMISTRY | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | CELLS | - |
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