DC Field | Value | Language |
---|---|---|
dc.contributor.author | Singh, Vikram | ko |
dc.contributor.author | Kwon, Seongyeon | ko |
dc.contributor.author | Choi, Yunseop | ko |
dc.contributor.author | Ahn, Seongmo | ko |
dc.contributor.author | Kang, Gyumin | ko |
dc.contributor.author | Yi, Yelim | ko |
dc.contributor.author | Lim, Mi Hee | ko |
dc.contributor.author | Seo, Jongcheol | ko |
dc.contributor.author | Baik, Mu-Hyun | ko |
dc.contributor.author | Byon, Hye Ryung | ko |
dc.date.accessioned | 2023-04-11T08:02:40Z | - |
dc.date.available | 2023-04-11T08:02:40Z | - |
dc.date.created | 2023-03-13 | - |
dc.date.created | 2023-03-13 | - |
dc.date.issued | 2023-03 | - |
dc.identifier.citation | ADVANCED MATERIALS, v.35, no.13 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | http://hdl.handle.net/10203/306111 | - |
dc.description.abstract | Organic redox-active molecules are a promising platform for designing sustainable, cheap, and safe charge carriers for redox flow batteries. However, radical formation during the electron-transfer process causes severe side reactions and reduces cyclability. This problem is mitigated by using naphthalene diimide (NDI) molecules and regulating their pi-pi interactions. The long-range pi-stacking of NDI molecules, which leads to precipitation, is disrupted by tethering four ammonium functionalities, and the solubility approaches 1.5 m in water. The gentle pi-pi interactions induce clustering and disassembling of the NDI molecules during the two-electron transfer processes. When the radical anion forms, the antiferromagnetic coupling develops tetramer and dimer and nullifies the radical character. In addition, short-range-order NDI clusters at 1 m concentration are not precipitated but inhibit crossover. They are disassembled in the subsequent electron-transfer process, and the negatively charged NDI core strongly interacts with ammonium groups. These behaviors afford excellent RFB performance, demonstrating 98% capacity retention for 500 cycles at 25 mA cm(-2) and 99.5% Coulombic efficiency with 2 m electron storage capacity. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Controlling pi-pi Interactions of Highly Soluble Naphthalene Diimide Derivatives for Neutral pH Aqueous Redox Flow Batteries | - |
dc.type | Article | - |
dc.identifier.wosid | 000934610600001 | - |
dc.identifier.scopusid | 2-s2.0-85148455874 | - |
dc.type.rims | ART | - |
dc.citation.volume | 35 | - |
dc.citation.issue | 13 | - |
dc.citation.publicationname | ADVANCED MATERIALS | - |
dc.identifier.doi | 10.1002/adma.202210859 | - |
dc.contributor.localauthor | Lim, Mi Hee | - |
dc.contributor.localauthor | Baik, Mu-Hyun | - |
dc.contributor.localauthor | Byon, Hye Ryung | - |
dc.contributor.nonIdAuthor | Choi, Yunseop | - |
dc.contributor.nonIdAuthor | Seo, Jongcheol | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | naphthalene diimides | - |
dc.subject.keywordAuthor | neutral pH | - |
dc.subject.keywordAuthor | radical | - |
dc.subject.keywordAuthor | redox flow batteries | - |
dc.subject.keywordAuthor | spin pairing | - |
dc.subject.keywordPlus | ANOLYTE | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | ELECTRON | - |
dc.subject.keywordPlus | STACKS | - |
dc.subject.keywordPlus | LONG | - |
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