DC Field | Value | Language |
---|---|---|
dc.contributor.author | Ham, Youngjin | ko |
dc.contributor.author | Kim, Chungryeol | ko |
dc.contributor.author | Shin, Donghan | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Kang, Kisuk | ko |
dc.contributor.author | Jung, YounJoon | ko |
dc.contributor.author | Lee, Dongwhan | ko |
dc.contributor.author | Jeon, Seokwoo | ko |
dc.date.accessioned | 2023-11-08T02:00:48Z | - |
dc.date.available | 2023-11-08T02:00:48Z | - |
dc.date.created | 2023-07-17 | - |
dc.date.issued | 2023-11 | - |
dc.identifier.citation | SMALL, v.19, no.44 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.uri | http://hdl.handle.net/10203/314385 | - |
dc.description.abstract | In the quest for materials sustainability for grid-scale applications, graphene quantum dot (GQD), prepared via eco-efficient processes, is one of the promising graphitic-organic matters that have the potential to provide greener solutions for replacing metal-based battery electrodes. However, the utilization of GQDs as electroactive materials has been limited; their redox behaviors associated with the electronic bandgap property from the sp(2) carbon subdomains, surrounded by functional groups, are yet to be understood. Here, the experimental realization of a subdomained GQD-based anode with stable cyclability over 1000 cycles, combined with theoretical calculations, enables a better understanding of the decisive impact of controlled redox site distributions on battery performance. The GQDs are further employed in cathode as a platform for full utilization of inherent electrochemical activity of bio-inspired redox-active organic motifs, phenoxazine. Using the GQD-derived anode and cathode, an all-GQD battery achieves a high energy density of 290 Wh kg(cathode)(-1) (160 Wh kg(cathode+anode)(-1)), demonstrating an effective way to improve reaction reversibility and energy density of sustainable, metal-free batteries. | - |
dc.language | English | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | All-Graphene Quantum Dot-Derived Battery: Regulating Redox Activity Through Localized Subdomains | - |
dc.type | Article | - |
dc.identifier.wosid | 001017907200001 | - |
dc.identifier.scopusid | 2-s2.0-85163716916 | - |
dc.type.rims | ART | - |
dc.citation.volume | 19 | - |
dc.citation.issue | 44 | - |
dc.citation.publicationname | SMALL | - |
dc.identifier.doi | 10.1002/smll.202303432 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.localauthor | Jeon, Seokwoo | - |
dc.contributor.nonIdAuthor | Kim, Chungryeol | - |
dc.contributor.nonIdAuthor | Shin, Donghan | - |
dc.contributor.nonIdAuthor | Kang, Kisuk | - |
dc.contributor.nonIdAuthor | Jung, YounJoon | - |
dc.contributor.nonIdAuthor | Lee, Dongwhan | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | density functional theory (DFT) calculations | - |
dc.subject.keywordAuthor | energy storage | - |
dc.subject.keywordAuthor | graphene | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
dc.subject.keywordAuthor | metal-free | - |
dc.subject.keywordAuthor | organic electrodes | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | INTERCALATION | - |
dc.subject.keywordPlus | CATHODE | - |
dc.subject.keywordPlus | ANODES | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordPlus | SALT | - |
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