Electrospun MOF-based ZnSe nanocrystals confined in N-doped mesoporous carbon fibers as anode materials for potassium ion batteries with long-term cycling stability
DC Field | Value | Language |
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dc.contributor.author | Na, J.H. | - |
dc.contributor.author | Kang, Y.C. | - |
dc.contributor.author | Park, S.-K. | - |
dc.date.accessioned | 2023-03-08T09:34:08Z | - |
dc.date.available | 2023-03-08T09:34:08Z | - |
dc.date.issued | 2021-12-01 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.issn | 1873-3212 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/61933 | - |
dc.description.abstract | Potassium ion batteries (KIBs) are promising energy storage systems for large-scale applications. However, owing to the large diameter of K+, these batteries show limited electrochemical performance, particularly in terms of cycling stability. Thus, it is essential to design novel electrode materials for practical applications of KIBs. In this study, novel N-doped porous carbon nanofibers embedded with ultrafine ZnSe nanocrystals were successfully prepared as an advanced anode material for KIBs via electrospinning of a Zn-based zeolitic imidazolate framework (ZIF-8) and subsequent thermal treatment. Numerous mesopores were generated within the nanofibers by the transformation of ZIF-8 nanoparticles into a hollow carbon frame during thermal treatment. The unique 1D structure provided sufficient active sites for K+ storage, shortened the diffusion path for ions, and enhanced the structural robustness of the electrode. The N-doped carbon matrix also effectively alleviated the mechanical stress in the ZnSe nanocrystals and improved the electrical conductivity. Consequently, the 1D porous nanostructured electrodes exhibited excellent long-term cycling stability for 1000 cycles when tested as anodes for KIBs, with a reversible capacity of 270 mA h g−1 at 0.5 A g−1 and a high-rate capacity of 139 mA h g−1 at 2.0 A g−1. © 2021 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Electrospun MOF-based ZnSe nanocrystals confined in N-doped mesoporous carbon fibers as anode materials for potassium ion batteries with long-term cycling stability | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.cej.2021.131651 | - |
dc.identifier.bibliographicCitation | Chemical Engineering Journal, v.425 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000707126000265 | - |
dc.identifier.scopusid | 2-s2.0-85112466076 | - |
dc.citation.title | Chemical Engineering Journal | - |
dc.citation.volume | 425 | - |
dc.type.docType | Article | - |
dc.publisher.location | 스위스 | - |
dc.subject.keywordAuthor | Electrospinning | - |
dc.subject.keywordAuthor | K-ion battery | - |
dc.subject.keywordAuthor | Porous material | - |
dc.subject.keywordAuthor | ZIF-8 | - |
dc.subject.keywordAuthor | Zinc selenide | - |
dc.subject.keywordPlus | Anodes | - |
dc.subject.keywordPlus | Carbon nanofibers | - |
dc.subject.keywordPlus | Doping (additives) | - |
dc.subject.keywordPlus | Heat treatment | - |
dc.subject.keywordPlus | II-VI semiconductors | - |
dc.subject.keywordPlus | Ions | - |
dc.subject.keywordPlus | Mesoporous materials | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordPlus | Potassium | - |
dc.subject.keywordPlus | Secondary batteries | - |
dc.subject.keywordPlus | Selenium compounds | - |
dc.subject.keywordPlus | Zinc compounds | - |
dc.subject.keywordPlus | Anode material | - |
dc.subject.keywordPlus | Cycling stability | - |
dc.subject.keywordPlus | Electrospuns | - |
dc.subject.keywordPlus | Ion batteries | - |
dc.subject.keywordPlus | K-ion battery | - |
dc.subject.keywordPlus | N-doped | - |
dc.subject.keywordPlus | Potassium ions | - |
dc.subject.keywordPlus | Thermal | - |
dc.subject.keywordPlus | ZIF-8 | - |
dc.subject.keywordPlus | Zinc selenide | - |
dc.subject.keywordPlus | Electrospinning | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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