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DC Field | Value | Language |
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dc.citation.startPage | 228371 | - |
dc.citation.title | JOURNAL OF POWER SOURCES | - |
dc.citation.volume | 468 | - |
dc.contributor.author | Kim, Yea Eun | - |
dc.contributor.author | Yeom, Su Jeong | - |
dc.contributor.author | Lee, Jung-Eun | - |
dc.contributor.author | Kang, Sujin | - |
dc.contributor.author | Kang, Haisu | - |
dc.contributor.author | Lee, Ga-Hyeun | - |
dc.contributor.author | Kim, Min Jeong | - |
dc.contributor.author | Lee, Seung Geol | - |
dc.contributor.author | Lee, Hyun-Wook | - |
dc.contributor.author | Chae, Han Gi | - |
dc.date.accessioned | 2023-12-21T17:11:35Z | - |
dc.date.available | 2023-12-21T17:11:35Z | - |
dc.date.created | 2020-06-02 | - |
dc.date.issued | 2020-08 | - |
dc.description.abstract | We herein report the preparation of SIBs using carbon anodes based on spray-dried cellulose nanocrystals (CNCs) carbonized over a wide temperature range (i.e., 800-2500 degrees C). The structural variations in the CNC-based carbon anodes are correlated with the sodiation mechanism by investigating the galvanostatic voltage profiles, and it is found that Na ion adsorption takes place in the less-ordered carbonaceous structures followed by intercalation into the more ordered internal carbon structure with an average interlayer spacing of >0.37 nm. Among the various anodes examined, the CNCs carbonized at 1500 degrees C (C1500) deliver the highest reversible specific capacity of 311 mA h g(-1) at a current density of 10 mA g(-1), and exhibit an outstanding rate capability (273 mA h g(-1) at 400 mA g(-1)). In addition, they also possess an excellent specific capacity retention of 92.3% even after 400 cycles at 100 mA g(-1), along with an initial coulombic efficiency of 85%. Density functional theory (DFT) calculation exhibits that the energy barrier for Na ion intercalation of C1500 (0.20 eV) is almost a half that of the CNCs carbonized at 2500 degrees C (0.39 eV). | - |
dc.identifier.bibliographicCitation | JOURNAL OF POWER SOURCES, v.468, pp.228371 | - |
dc.identifier.doi | 10.1016/j.jpowsour.2020.228371 | - |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.scopusid | 2-s2.0-85085569042 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/32312 | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0378775320306753 | - |
dc.identifier.wosid | 000543021900020 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER | - |
dc.title | Structure-dependent sodium ion storage mechanism of cellulose nanocrystal-based carbon anodes for highly efficient and stable batteries | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Electrochemistry; Energy & Fuels; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Cellulose nanocrystals | - |
dc.subject.keywordAuthor | Carbonization | - |
dc.subject.keywordAuthor | Na ion battery | - |
dc.subject.keywordAuthor | Intercalation | - |
dc.subject.keywordAuthor | Na storage mechanism | - |
dc.subject.keywordPlus | HIGH-CAPACITY ANODE | - |
dc.subject.keywordPlus | GRAPHENE OXIDE | - |
dc.subject.keywordPlus | GRAPHITE | - |
dc.subject.keywordPlus | CARBONIZATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | INSERTION | - |
dc.subject.keywordPlus | GRAPHITIZATION | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | NANOTUBE | - |
dc.subject.keywordPlus | LITHIUM | - |
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