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dc.contributor.author | Zheng, Yayun | en |
dc.contributor.author | Hwang, Jinkwang | en |
dc.contributor.author | Matsumoto, Kazuhiko | en |
dc.contributor.author | Hagiwara, Rika | en |
dc.contributor.alternative | 鄭, 亞雲 | ja |
dc.contributor.alternative | 黄, 珍光 | ja |
dc.contributor.alternative | 松本, 一彦 | ja |
dc.contributor.alternative | 萩原, 理加 | ja |
dc.date.accessioned | 2022-07-06T08:28:28Z | - |
dc.date.available | 2022-07-06T08:28:28Z | - |
dc.date.issued | 2022-03-28 | - |
dc.identifier.uri | http://hdl.handle.net/2433/274797 | - |
dc.description.abstract | Despite significant advances in the Li-Fe-F systems for lithium-ion batteries, the investigation on the Na-Fe-F systems for sodium-ion batteries is still insufficient. Herein, trirutile-derived FeF₃ prepared through the electrochemical delithiation of trirutile Li₀.₅FeF₃ has been examined as the positive electrode of sodium-ion batteries at 90 °C with a thermally stable ionic liquid electrolyte to shed light on the structural evolutions occurring during sodiation–desodiation for the first time. Synchrotron X-ray diffraction revealed that the reversible topotactic extraction/insertion of 0.2 Na⁺ proceeds during cycling between 2.6 and 4.0 V, which triggers a two-phase reaction between tetragonal NaxFeF₃ and tetragonal FeF₃. A lower cutoff voltage of 2.3–4.0 V induces a partial structural transition from tetragonal FeF₃ into cubic FeF₃ along with cycling, where the topotactic Na⁺ extraction/insertion not only occurs in the tetragonal structure but also involves the reversible phase transformation between orthorhombic NaFeF₃ and cubic FeF₃ after several cycles. | en |
dc.language.iso | eng | - |
dc.publisher | American Chemical Society (ACS) | en |
dc.rights | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Energy Materials, Copyright © 2022 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsaem.1c03756. | en |
dc.rights | The full-text file will be made open to the public on February 27, 2023 in accordance with publisher's 'Terms and Conditions for Self-Archiving'. | en |
dc.rights | This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 | en |
dc.subject | tetragonal FeF₃ | en |
dc.subject | cubic FeF₃ | en |
dc.subject | structural transition | en |
dc.subject | sodium-ion batteries | en |
dc.subject | ionic liquids | en |
dc.title | Electrochemical and Structural Behavior of Trirutile-Derived FeF3 During Sodiation and Desodiation | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | ACS Applied Energy Materials | en |
dc.identifier.volume | 5 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | 3137 | - |
dc.identifier.epage | 3145 | - |
dc.relation.doi | 10.1021/acsaem.1c03756 | - |
dc.textversion | author | - |
dcterms.accessRights | open access | - |
datacite.date.available | 2023-02-27 | - |
datacite.awardNumber | 19H04695 | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-19H04695/ | - |
dc.identifier.eissn | 2574-0962 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.awardTitle | 新規含フッ素複合アニオン化合物の開拓 | ja |
出現コレクション: | 学術雑誌掲載論文等 |
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